Use this command to update a defined device class.
The syntax and parameter descriptions are provided according to the device type. The syntax and parameter information is presented in the following order:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+----------------------+-------> '-LIBRary--=--library_name-' '-FORMAT--=--+-DRIVE-+-' +-3570B-+ '-3570C-' >--+----------------------+-------------------------------------> '-ESTCAPacity--=--size-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
The following table lists the recording formats and estimated capacities
for 3570 devices:
Table 305. Recording Format and Default Estimated Capacity for 3570 Tape Volumes
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | -- | The server selects the highest format that is supported by the drive on
which a volume is mounted.
Attention: Avoid specifying DRIVE when a mixture of drives is used within the same library. For example, do not use this option for a library containing some drives that support recording formats superior to other drives. |
3570B | 5.0GB | Uncompressed (basic) format |
3570C |
See note 10.0GB
| Compressed format |
|
You can specify this parameter if the default estimated capacity for the device class is inaccurate due to compression of data.
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes). The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For example, ESTCAPACITY=5M specifies that the estimated capacity for a volume in this device class is 5 megabytes.
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes).
For more information on the default estimated capacity for 3570 cartridge tapes, see Table 305.
If you have already established a media label naming convention that supports your current management system, consider using a volume prefix that conforms to your naming conventions.
Values specified for this parameter must meet the following conditions:
AB.CD2.E
An example of a tape volume data set name using the default prefix is ADSM.BFS.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online. However, for EXTERNAL library types setting this parameter to a low value (for example, two minutes) enhances device sharing between applications.
The following are possible values:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+------------------------+-----> '-LIBRary--=--library_name-' '-FORMAT--=--+-DRIVE---+-' +-3590B---+ +-3590C---+ +-3590E-B-+ '-3590E-C-' >--+----------------------+-------------------------------------> '-ESTCAPacity--=--size-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+----------------------------+--+-----------------------+--->< '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-'
The following tables list the recording formats, estimated capacities and
recording format options for 3590 devices:
Table 306. Recording Formats and Default Estimated Capacities for 3590
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | - | The server selects the highest format that is supported by the drive on
which a volume is mounted.
Attention: Avoid specifying DRIVE when a mixture of drives is used within the same library. For example, do not use this option for a library containing some drives that support recording formats superior to other drives. |
3590B | 10.0GB | Uncompressed (basic) format |
3590C |
See note 20.0GB
| Compressed format |
3590E-B | 10.0GB | Uncompressed (basic) format, similar to the 3590B format |
3590E-C |
See note 20.0GB
| Compressed format, similar to the 3590C format |
|
Table 307. 3590 Device Recording Format Selections
Device\Format |
3590B |
3590C |
3590E-B |
3590E-C |
---|---|---|---|---|
3590B Ultra SCSI 3590E |
Read/Write Read/Write Read |
Read/Write Read/Write Read |
- - Read/Write |
- - Read/Write |
You can specify this parameter if the default estimated capacity for the device class is inaccurate due to compression of data.
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes). The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For example, ESTCAPACITY=5M specifies that the estimated capacity for a volume in this device class is 5 megabytes.
If you have already established a media label naming convention that supports your current management system, consider using a volume prefix that conforms to your naming conventions.
Values specified for this parameter must meet the following conditions:
AB.CD2.E
An example of a tape volume data set name using the default prefix is ADSM.BFS.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online.However, for EXTERNAL library types, setting this parameter to a low value (for example, two minutes) enhances device sharing between applications.
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+----------------------+-------> '-LIBRary--=--library_name-' '-FORMAT--=--+-DRIVE-+-' +-DDS1--+ +-DDS1C-+ +-DDS2--+ +-DDS2C-+ +-DDS3--+ +-DDS3C-+ +-DDS4--+ '-DDS4C-' >--+----------------------+-------------------------------------> '-ESTCAPacity--=--size-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+-----------------------+--+----------------------------+----> '-MOUNTWait--=--minutes-' '-MOUNTRetention--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
The following table lists the recording formats and estimated capacities
for 4mm devices:
Table 308. Recording Formats and Default Estimated Capacities for 4mm Tapes
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | -- | The server selects the highest format that is supported by the drive on
which a volume is mounted.
Attention: Avoid specifying DRIVE when a mixture of drives is used within the same library. For example, do not use this option for a library containing some drives that support recording formats superior to other drives. |
DDS1 | 1.3GB (60-meter)
2.0GB (90-meter) | Uncompressed format, applies only to 60-meter and 90-meter tapes |
DDS1C |
See note 1.3GB (60-meter) 2.0GB (90-meter)
| Compressed format, applies only to 60-meter and 90-meter tapes |
DDS2 | 4.0GB | Uncompressed format, only applies to 120-meter tapes |
DDS2C |
See note 8.0GB
| Compressed format, only applies to 120-meter tapes |
DDS3 | 12.0GB | Uncompressed format, only applies to 125-meter tapes |
DDS3C |
See note 24.0GB
| Compressed format, only applies to 125-meter tapes |
DDS4 | 20.0GB | Uncompressed format, only applies to 150-meter tapes |
DDS4C |
See note 40.0GB
| Compressed format, only applies to 150-meter tapes |
|
You can specify this parameter if the default estimated capacity for the device class is inaccurate due to compression of data.
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes). The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For example, ESTCAPACITY=5M specifies that the estimated capacity for a volume in this device class is 5 megabytes.
For more information on the default estimated capacity for 4mm tapes, see Table 308.
If you have already established a media label naming convention that supports your current management system, consider using a volume prefix that conforms to your naming conventions.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online. However, for EXTERNAL library types (that is, a library managed by an external media management system), set this parameter to a low value (for example, two minutes) to enhance device sharing between applications.
The following are possible values:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+----------------------+-------> '-LIBRary--=--library_name-' '-FORMAT--=--+-DRIVE-+-' +-8200--+ +-8200C-+ +-8500--+ +-8500C-+ +-8900--+ +-AIT---+ +-AITC--+ +-M2----+ '-M2C---' >--+----------------------+-------------------------------------> '-ESTCAPacity--=--size-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
The following table lists the recording formats and estimated capacities
for 8mm devices:
Table 309. Recording Format and Default Estimated Capacity for 8mm Tape
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | - | The server selects the highest format that is supported by the drive on
which a volume is mounted.
Attention: Avoid specifying DRIVE when a mixture of drives is used within the same library. For example, do not use this option for a library containing some drives that support recording formats superior to other drives. |
8200 | 2.3GB | Uncompressed (standard) format, using standard 112-meter tape cartridges |
8200C |
See note 3.5GB 4.6GB
| Compressed (standard) format, using standard 112-meter tape cartridges |
8500
15m
| See note
600MB
| Drives (Read Write)
Eliant 820 (RW) Exabyte 8500/8500C (RW) Exabyte 8505 (RW) Eliant 820 (RW) Exabyte 8500/8500C (RW) Exabyte 8505 (RW) Eliant 820 (RW) Exabyte 8500/8500C (RW) Exabyte 8505 (RW) Eliant 820 (RW) |
8500C
15m
| See note
1.2GB
| Drives (Read Write)
Eliant 820 (RW) Exabyte 8500/8500C (RW) Exabyte 8505 (RW) Eliant 820 (RW) Exabyte 8500/8500C (RW) Exabyte 8505 (RW) Eliant 820 (RW) Exabyte 8500/8500C (RW) Exabyte 8505 (RW) Eliant 820 (RW) |
8900
15m 54m 112m 160m XL 22m 125m 170m | See note
- - - - 2.5 GB - 40 GB | Drive (Read Write)
Mammoth 8900 (R) Mammoth 8900 (R) Mammoth 8900 (R) Mammoth 8900 (R) Mammoth 8900 (RW) Mammoth 8900 (RW with upgrade) Mammoth 8900 (RW) |
AIT
AIT 15m AIT 50m AIT 170m
| See note
1.75GB 7.0GB 25.0GB 25.0GB 35.0GB 35.0GB 36.0GB 50.0GB | Drive
AIT Drive (300/300C) AIT Drive (300/300C) AIT Drive (300/300C) AIT2 Drive (500C) AIT Drive (300/300C) AIT2 Drive (500C) AIT2 Drive (500C) AIT2 Drive (500C) |
AITC
AIT 15m AIT 50m AIT 170m
| See note
3.5 GB 14.0 GB 50.0 GB 50.0 GB 70.0 GB 70.0 GB 72.0 GB 100.0 GB | Drive
AIT Drive (300/300C) AIT Drive (300/300C) AIT Drive (300/300C) AIT2 Drive (500C) AIT Drive (300/300C) AIT2 Drive (500C) AIT2 Drive (500C) AIT2 Drive (500C) |
M2
22m 48m 75m 125m 150m 170m 225m | See note
5.0GB 12.0GB 20.0GB 30.0GB 40.0GB 45.0GB 60.0GB | Drive (Read Write)
Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) |
M2C
22m 48m 75m 125m 150m 170m 225m | See note
12.0GB 30.0GB 50.0GB 75.0GB 100.0GB 113.0GB 150.0GB | Drive (Read Write)
Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) Mammoth II (RW) |
|
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes).
For example, ESTCAPACITY=5M specifies that the estimated capacity for a volume in this device class is 5 megabytes. The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For more information on the default estimated capacity for 8mm tapes, see Table 309.
If you have already established a media label naming convention that supports your current management system, consider using a volume prefix that conforms to your naming conventions.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online.
For EXTERNAL library types (that is, a library managed by an external media management system), set this parameter to a low value (for example, two minutes) to enhance device sharing between applications.
The following are possible values:
Examples
Task
Update a device class named 8MMTAPE. Change the mount limit to 3 and the estimated capacity to 10GB.
update devclass 8mmtape mountlimit=3 estcapacity=10G
Task
Update an 8mm device class named 8MMTAPE to a 15-minute mount retention.
update devclass 8mmtape mountretention=15
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+-----------------------+------> '-LIBRary--=--library_name-' '-FORMAT--=--+-DRIVE--+-' +-DLT10--+ +-DLT10C-+ +-DLT15--+ +-DLT15C-+ +-DLT20--+ +-DLT20C-+ +-DLT35--+ +-DLT35C-+ +-DLT40--+ +-DLT40C-+ +-SDLT---+ '-SDLTC--' >--+----------------------+-------------------------------------> '-ESTCAPacity--=--size-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
The following table lists the recording formats and estimated capacities
for DLT devices:
Table 310. Recording Format and Default Estimated Capacity for DLT
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | - | The server selects the highest format that is supported by the drive on
which a volume is mounted.
Attention: Avoid specifying DRIVE when a mixture of drives is used within the same library. For example, do not use this option for a library containing some drives that support recording formats superior to other drives. |
DLT10 | 10.0GB | Uncompressed format, using only CompacTape III or CompacTape IV cartridges |
DLT10C |
See note (CDLU). 20.0GB
| Compressed format, using only CompacTape III and CompacTape IV cartridges |
DLT15 | 15.0GB | Uncompressed format, using only CompacTape IIIxt or CompacTape IV
cartridges (not CompacTape III)
|
DLT15C |
See note (CDLU). 30.0GB
| Compressed format, using only CompacTape IIIxt or CompacTape IV
cartridges (not CompacTape III)
Valid with DLT2000XT, DLT4000, and DLT7000 drives |
DLT20 | 20.0GB | Uncompressed format, using only CompacTape IV cartridges
Valid with DLT4000, DLT7000, and DLT8000 drives |
DLT20C |
See note (CDLU). 40.0GB
| Compressed format, using only CompacTape IV cartridges
Valid with DLT4000, DLT7000, and DLT8000 drives |
DLT35 | 35.0GB | Uncompressed format, using only CompacTape IV cartridges
Valid with DLT7000 and DLT8000 drives |
DLT35C |
See note (CDLU). 70.0GB
| Compressed format, using only CompacTape IV cartridges
Valid with DLT7000 and DLT8000 drives |
DLT40 | 40.0GB | Uncompressed format, using CompacTape IV cartridges
Valid with a DLT8000 drive |
DLT40C |
See note (CDLU). 80.0GB
| Compressed format, using CompacTape IV cartridges
Valid with a DLT8000 drive |
SDLT
See note (BRCU). | 100.0GB | Uncompressed format, using Super DLT Tape 1 cartridges
Valid with a Super DLT drive |
SDLTC
See note (BRCU). |
See note (CDLU). 200.0GB
| Compressed format, using Super DLT Tape 1 cartridges
Valid with a Super DLT drive |
Notes:
|
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes).
For example, ESTCAPACITY=5M specifies that the estimated capacity for a volume in this device class is 5 megabytes. The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For more information on estimated capacities, see Table 310.
If you have already established a media label naming convention that supports your current management system, consider using a volume prefix that conforms to your naming conventions.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online. However, for EXTERNAL library types (that is, a library managed by an external media management system), set this parameter to a low value (for example, two minutes) to enhance device sharing between applications.
The following are possible values:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+----------------------+-------> '-LIBRary--=--library_name-' '-FORMAT--=--+-DRIVE-+-' +-DTF---+ +-DTFC--+ +-DTF2--+ '-DTF2C-' >--+----------------------+-------------------------------------> '-ESTCAPacity--=--size-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
The following table lists the recording formats and estimated capacities
for DLT devices:
Table 311. Recording Format and Default Estimated Capacity for DTF
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | - | The server selects the highest format that is supported by the drive on
which a volume is mounted.
Attention: Avoid specifying DRIVE when a mixture of drives is used within the same library. For example, do not use this option for a library containing some drives that support recording formats superior to other drives. |
DTF |
12.0GB 42.0GB |
Using GW-240 tape cassettes Using GW-730L tape cassettes |
DTFC |
24.0GB 84.0GB |
Using GW-240 tape cassettes Using GW-730L tape cassettes |
DTF2 |
60.0GB 200.0GB |
Using GW2-60GS tape cassettes Using GW2-200GL tape cassettes |
DTF2C |
120.0GB 400.0GB |
Using GW2-60GS tape cassettes Using GW2-200GL tape cassettes |
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes).
The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For more information on estimated capacities, see Table 311.
If you have already established a media label naming convention that supports your current management system, use a volume prefix that conforms to your naming conventions.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online. However, for EXTERNAL library types (that is, a library managed by an external media management system), set this parameter to a low value (for example, two minutes) to enhance device sharing between applications.
The following are possible values:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+-----------------------+------> '-LIBRary--=--library_name-' '-FORMAT--=--+-DRIVE--+-' +-18T----+ +-18TC---+ +-36T----+ +-36TC---+ +-SD3A---+ +-SD3AC--+ +-SD3B---+ +-SD3BC--+ +-SD3C---+ +-SD3CC--+ +-9840---+ +-9840C--+ +-9940---+ +-9940C--+ +-M8100--+ '-M8100C-' >--+----------------------+-------------------------------------> '-ESTCAPacity--=--size-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
Attention: If you specify DRIVE for a device class that has non-compatible sequential access devices, then you must mount volumes on devices that are capable of reading or writing the format established when the volume was first mounted. This can cause delays if the only sequential access device that can access the volume is already in use.
The following table lists the recording formats and estimated capacities
for ECARTRIDGE devices:
Table 312. Recording Formats and Default Estimated Capacities for ECARTRIDGE Tapes
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | - | The server selects the highest format that is supported by the drive on
which a volume is mounted.
Attention: Avoid specifying DRIVE when a mixture of drives is used within the same library. For example, do not use this option for a library containing some drives that support recording formats superior to other drives. |
18T | 360MB | 18-track uncompressed (standard) (read-only) format |
18TC |
See note 1.44GB
| 18-track extended (read-only), compressed format |
36T | 720MB | 36-track extended (read and write) format |
36TC |
See note 2.88GB
| 36-track extended (read and write), compressed format |
SD3A | 10GB | Uncompressed (standard) format, using a 10GB 'A' cartridge with 91 meters (298 feet) of tape |
SD3AC |
See note 40GB
| Compressed format, using a 10GB 'A' cartridge with 91 meters (298 feet) of tape |
SD3B | 25GB | Uncompressed (standard) format, using a 25GB 'B' cartridge with 204 meters (668 feet) of tape |
SD3BC |
See note 100GB
| Compressed format, using a 25GB 'B' cartridge with 204 meters (668 feet) of tape |
SD3C | 50GB | Uncompressed (standard) format, using a 50GB 'C' cartridge with 392 meters (1286 feet) of tape |
SD3CC |
See note 200GB
| Compressed format, using a 50GB 'C' cartridge with 392 meters (1286 feet) of tape |
9840 | 20GB | Uncompressed (standard) format, using a 20GB cartridge with 270 meters (885 feet) of tape |
9840C |
See note 80GB
| LZ-1 Enhanced (4:1) compressed format, using a 80GB cartridge with 270 meters (885 feet) of tape |
9940 | 60GB | Uncompressed (standard) format, using a 60GB cartridge. |
9940C |
See note 120GB
| Compressed format, using a 60GB cartridge. |
|
You can specify this parameter if the default estimated capacity for the device class is inaccurate due to compression of data.
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes). The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For example, ESTCAPACITY=5M specifies that the estimated capacity for a volume in this device class is 5 megabytes.
For more information on the default estimated capacity for cartridge tapes, see Table 312.
If you have already established a tape label naming convention that supports your current tape management system, consider using a tape volume prefix that conforms to your naming conventions.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online. However, for EXTERNAL library types (that is, a library managed by an external media management system), set this parameter to a low value (for example, two minutes) to enhance device sharing between applications.
The following are possible values:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+-----------------------+--+----------------------+----------> '-MOUNTLimit--=--number-' '-MAXCAPacity--=--size-' >--+------------------------------+--+--------------------+---->< '-DIRectory--=--directory_name-' '-SHAREd--=--+-No--+-' '-Yes-'
The maximum value is 128GB (MAXCAPACITY=128G).
For example, MAXCAPACITY=5M specifies that the maximum capacity for a volume in this device class is 5 megabytes.
By specifying a directory name, you identify the location where the server places the files that represent storage volumes for this device class.
Later, if the server needs to allocate a scratch volume, it creates a new file in this directory. For scratch volumes used to store client data, the file created by the server has a file name extension of .BFS. For scratch volumes used to store export data, a file name extension of .EXP is used. For example, if you define a device class with a DIRECTORY of c:\tsmstor and the server needs a scratch volume in this device class to store export data, the file that the server creates may be named c:\tsmstor\00566497.exp.
Examples
Task
Prepare a FILE device class (named PLAINFILES) for sharing with a Tivoli Storage Manager storage agent.
update devclass plainfiles shared=yes
Task
Update a file device class named STORFILES to a maximum capacity of 25MB.
update devclass storfiles maxcap=25m
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+----------------------+-------> '-LIBRary--=--library_name-' '-ESTCAPacity--=--size-' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
You can specify this parameter if the default estimated capacity for the device class is inaccurate due to compression of data.
Specify a capacity appropriate to the particular tape drive being used.
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes). The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For example, ESTCAPACITY=5M specifies that the estimated capacity for a volume in this device class is 5 megabytes.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online. |However, for EXTERNAL library types, setting this parameter to a low |value (for example, two minutes) enhances device sharing between |applications.
The following are possible values:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+-------------------------+----> '-LIBRary--=--library_name-' '-FORMAT--=--+-DRIVE----+-' +-ULTRIUM--+ '-ULTRIUMC-' >--+----------------------+-------------------------------------> '-ESTCAPacity--=--size-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
The following table lists the recording formats and estimated capacities
for LTO devices:
Table 313. Recording Format and Default Estimated Capacity for LTO
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | - | The server selects the highest format that is supported by the drive on
which a volume is mounted.
Attention: Avoid specifying DRIVE when a mixture of drives is used within the same library. For example, do not use this option for a library containing some drives that support recording formats superior to other drives. |
ULTRIUM | 100.0GB | Uncompressed format, using ULTRIUM cartridges |
ULTRIUMC |
See note 200.0GB
| Compressed format, using ULTRIUM cartridges |
|
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes).
For example, ESTCAPACITY=100G specifies that the estimated capacity for a volume in this device class is 100 gigabytes.
For more information on estimated capacities, see Table 313.
If you have already established a media label naming convention that supports your current management system, use a volume prefix that conforms to your naming conventions.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online. However, for EXTERNAL library types (that is, a for library managed by an external media management program), you can enhance device sharing between applications by settting this parameter to a low value (for example, two minutes) .
The following are possible values:
Examples
Task
Update a device class named LTOTAPE. Change the mount limit to 2.
update devclass ltotape mountlimit=2
|Privilege Class
|To issue this command, you must have system privilege or unrestricted |storage privilege.
|>>-UPDate DEVclass--device_class_name---------------------------> | |>--+--------------------------+--+----------------------+-------> | '-LIBRary--=--library_name-' '-MOUNTRetention--=--0-' | |>--+-----------------------+--+---------------------------+-----> | '-MOUNTWait--=--minutes-' '-MOUNTLimit--=--+-DRIVES-+-' | +-number-+ | '-0------' | |>--+----------------------+-------------------------------------> | '-ESTCAPacity--=--size-' | |>--+-------------------------------+--------------------------->< | '-PREFIX--=--tape_volume_prefix-' | |
|Parameters |
|The following are possible values: |
|This value must be an integer followed by K (kilobytes), |M (megabytes), or G (gigabytes).
|For example, ESTCAPACITY=100G specifies that the estimated capacity for |a volume in this device class is 100 gigabytes.
|If you have already established a media label naming convention that |supports your current management system, use a volume prefix that conforms to |your naming conventions. |
|Examples
|Task
|Update a device class named NASTAPE. Change the estimated capacity |to 200GB. |
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+---------------------------------> '-LIBRary--=--library_name-' >--+-----------------------------+--+----------------------+----> '-FORMAT--=--+-DRIVE--------+-' '-ESTCAPacity--=--size-' | (1) | +-650MB--------+ | (1) | +-1300MB-------+ | (1) | +-2600MB-------+ | (1) | +-5200MB-------+ | (2) | +-5600MB-------+ | (3) | +-10200MB------+ | (2) | +-12000MB------+ | (3) | '-14800MB------' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
Notes:
The following table lists the recording formats and estimated capacities
for OPTICAL and WORM devices:
Table 314. Estimated Capacities for OPTICAL and WORM Drives
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | - | The server selects the highest format that is supported by the drive on
which a volume is mounted.
Attention: Avoid specifying DRIVE when a mixture of drives is used within the same library. For example, do not use this option for a library containing some drives that support recording formats superior to other drives. |
650MB | 650MB | Using a 650 MB 5.25-inch optical drive
Not valid for WORM12 or 14 device types |
1300MB | 1300MB | Using a 1300 MB 5.25-inch optical drive
Not valid for WORM12 or 14 device types |
2600MB | 2600MB | Using a 2600 MB 5.25-inch optical drive
Not valid for WORM12 or 14 device types |
5200MB | 5200MB | Using a 5200 MB 5.25-inch optical drive
Not valid for WORM12 or 14 device types |
5600MB | 5600MB | Using a 5600 MB 12-inch optical drive
Only valid for WORM12 device types |
10200MB | 10200MB | Using a 10200 MB 14-inch optical drive
Only valid for WORM14 device typesdevice types |
12000MB | 12000MB | Using a 12000 MB 12-inch optical drive
Only valid for WORM12 device types |
14800MB | 14800MB | Using a 14800 MB 14-inch optical drive
Only valid for WORM14 device types |
You can specify this parameter if the default estimated capacity for the device class is inaccurate due to compression of data.
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes). The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For example, ESTCAPACITY=5M specifies that the estimated capacity for a volume in this device class is 5 megabytes.
For more information on estimated capacities, see Table 314.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online. |However, for EXTERNAL library types, setting this parameter to a low |value (for example, two minutes) enhances device sharing between |applications.
The following are possible values:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+-------------------------+----> '-LIBRary--=--library_name-' '-FORMAT--=--+-DRIVE----+-' +-QIC120---+ +-QIC150---+ +-QIC525---+ +-QIC1000--+ +-QIC2GB---+ +-QIC2GBC--+ +-QIC4GB---+ +-QIC4GBC--+ +-QIC12GB--+ +-QIC12GBC-+ +-QIC20GB--+ +-QIC20GBC-+ +-QIC30GB--+ +-QIC30GBC-+ +-QIC5010--+ +-QIC5010C-+ +-QIC25GB--+ +-QIC25GBC-+ +-QIC50GB--+ '-QIC50GBC-' >--+----------------------+-------------------------------------> '-ESTCAPacity--=--size-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
The following tables list the recording formats, estimated capacities and
recording format options for QIC devices:
Table 315. Recording Format and Default Estimated Capacity for Quarter-inch Cartridge (QIC) Tape
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | - | The server selects the highest format that can be supported by the
sequential access drive on which a volume is mounted.
Avoid specifying the DRIVE value when a mixture of devices is used within the same library. For example, if you have drives that support recording formats superior to other drives in a library, do not specify the FORMAT=DRIVE option. |
QIC120 | 26.0MB - 172.0MB | 120 QIC format, depending on media |
QIC150 | 31.0MB - 207.0MB | 150 QIC format, depending on media |
QIC525 | 65.0MB - 427.0MB | 525 QIC format, depending on media |
QIC1000 | 169.0MB - 1.1GB | 1000 QIC format, depending on media |
QIC2GB | 2.0GB | Uncompressed 2000 QIC format |
QIC2GBC |
See note 4.0GB
| Compressed 2000 QIC format |
QIC4GB | 4.0GB | Uncompressed 4000 QIC format |
QIC4GBC |
See note 8.0GB
| Compressed 4000 QIC format |
QIC12GB | 12.0GB | Uncompressed 12000 QIC format, using 343-meter tape |
QIC12GBC |
See note 24.0GB
| Compressed 12000 QIC format, using 343-meter tape |
QIC5010 | 13.0GB - 16.0GB | Uncompressed 5010 QIC format, depending on media |
QIC5010C |
See note 26.0GB - 32.0GB
| Compressed 5010 QICformat, depending on media |
QIC20GB | 20.0GB | Uncompressed 20000 QIC format |
QIC20GBC |
See note 40.0GB
| Compressed 20000 QIC format |
QIC25GB | 25.0GB | Uncompressed 25000 QIC format |
QIC25GBC |
See note 50.0GB
| Compressed 25000 QIC format |
QIC30GB | 30.0GB | Uncompressed 30000 QIC format |
QIC30GBC |
See note 60.0GB
| Compressed 30000 QIC format |
QIC50GB | 50.0GB | Uncompressed 50GB QIC format |
QIC50GBC |
See note 100.0GB
| Compressed 50GBC QIC format |
|
Table 316. QIC Tape Recording Format Options
Tape\Format |
QIC-120 |
QIC-150 |
QIC-525 |
QIC-1000 |
---|---|---|---|---|
3M DC300XLP 3M DC600A 3M DC600XTD 3M DC6150 3M DC6320 3M DC6525 3M DC9100 3M DC9120XL |
- Read Read/Write Read/Write Read/Write Read/Write - - |
- - Read/Write Read/Write Read/Write Read/Write - - |
- - - - Read/Write Read/Write - - |
- - - - - - Read/Write Read/Write |
|
You can specify this parameter if the default estimated capacity for the device class is inaccurate due to compression of data.
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes). The smallest value allowed is 100KB (that is, ESTCAPACITY=100K).
For example, ESTCAPACITY=5M specifies that the estimated capacity for a volume in this device class is 5 megabytes.
For more information on the default estimated capacity for QIC tapes, see Table 315.
If you have already established a media label naming convention that supports your current management system, consider using a volume prefix that conforms to your naming conventions.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online. However, for EXTERNAL library types (that is, a library managed by an external media management system), set this parameter to a low value (for example, two minutes) to enhance device sharing between applications.
The following are possible values:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDate DEVclass--device_class_name---------------------------> >--+--------------------------+--+----------------------+-------> '-LIBRary--=--library_name-' '-MAXCAPacity--=--size-' >--+----------------------------+--+-----------------------+----> '-MOUNTRetention--=--minutes-' '-MOUNTWait--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
You must specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes).
For example, MAXCAPACITY=5M specifies that the maximum capacity for a volume in this device class is 5 megabytes. The smallest value allowed is 100KB (that is, MAXCAPACITY=100K).
Because the server opens only one file per physical removable medium, specify a capacity such that the one file makes full use of your media capacity.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online.
The following are possible values:
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-UPDdate DEVclass--device_class_name--------------------------> >--+----------------------------+--+----------------------+-----> '-SERVERName--=--server_name-' '-MAXCAPacity--=--500M-' >--+-----------------------------------+------------------------> '-PREFIX--=--+-ADSM---------------+-' '-tape_volume_prefix-' >--+-----------------------------+------------------------------> '-RETRYPeriod--=----minutes---' >--+-------------------------------+----------------------------> '-RETRYInterval--=----seconds---' >--+----------------------------+-------------------------------> '-MOUNTRetention--=--minutes-' >--+---------------------------+------------------------------->< '-MOUNTLimit--=--+-number-+-' '-0------'
Specify this value as an integer followed by K (Kilobytes), M (Megabytes), or G (Gigabytes). The minimum value allowed is 100KB (MAXCAPACITY=100K).
If you have already established a media label naming convention that supports your current management system, use a volume prefix that conforms to your naming conventions.
The following are possible values:
Table 317. Commands Related to UPDATE DEVCLASS
Command | Description |
---|---|
BACKUP DEVCONFIG | Backs up TSM device information to a file. |
DEFINE DEVCLASS | Defines a device class. |
DEFINE LIBRARY | Defines an automated or manual library. |
DELETE DEVCLASS | Deletes a device class name. |
QUERY DEVCLASS | Displays information about device classes. |