I have a devc called FILECLASS based on DEVT FILE,
and I got a STGPOOL based on this DEVC
and when I perform migration to tapes (to an STG based on
DEVC=LTO2CLASS, DEVT=LTO)
I see that two processes (out of 3) are waiting for a mount in DEVC FILECLASS:
tsm: TRISTAN>q pr
Process Process Description Status
Number
-------- --------------------
-------------------------------------------------
3 Migration Volume
/tsmfs02/file/00000218.BFS (storage pool
FILE_MAIL), Moved Files: 0,
Moved Bytes: 0,
Unreadable Files: 0, Unreadable
Bytes: 0.
Current Physical File (bytes):
100,372,059
Waiting for mount point in
device class
FILECLASS (1791 seconds).
4 Migration Volume
/tsmfs01/file/000001B9.BFS (storage pool
FILE_MAIL), Moved Files: 336,
Moved Bytes:
59,969,894,381, Unreadable
Files: 0, Unreadable
Bytes: 0. Current Physical File
(bytes):
584,850,161 Current input
volume:
/tsmfs01/file/000001B9.BFS.
Current output
volume: A00190.
5 Migration Volume
/tsmfs02/file/00000220.BFS (storage pool
FILE_MAIL), Moved Files: 0,
Moved Bytes: 0,
Unreadable Files: 0, Unreadable
Bytes: 0.
Current Physical File (bytes):
386,606,951
Waiting for mount point in
device class
FILECLASS (1791 seconds).
The device class as shown below is limited to 20 concurrent mounts.
So why the proccesses are denied immediate access to the FILE volumes?
The particulars of the STG and DEVC are as following:
tsm: TRISTAN>q dev fileclass f=d
Device Class Name: FILECLASS
Device Access Strategy: Sequential
Storage Pool Count: 4
Device Type: FILE
Format: DRIVE
Est/Max Capacity (MB): 51,200.0
Mount Limit: 20
Mount Wait (min):
Mount Retention (min):
Label Prefix:
Library:
Directory: /tsmfs01/file,/tsmfs02/file
Server Name:
Retry Period:
Retry Interval:
High-level Address:
Minimum Capacity:
WORM: No
Drive Encryption:
Scaled Capacity:
Last Update by (administrator): CCC
Last Update Date/Time: 07/16/2007 00:38:34
And there is a storage pool based on this DEVC
tsm: TRISTAN>q stg file_mail f=d
Storage Pool Name: FILE_MAIL
Storage Pool Type: Primary
Device Class Name: FILECLASS
Estimated Capacity: 921 G
Space Trigger Util: 82.7
Pct Util: 59.8
Pct Migr: 72.2
Pct Logical: 100.0
High Mig Pct: 99
Low Mig Pct: 95
Migration Delay: 0
Migration Continue: Yes
Migration Processes: 3
Reclamation Processes: 1
Next Storage Pool: LTO2_MAIL
Reclaim Storage Pool:
Maximum Size Threshold: No Limit
Access: Read/Write
Description:
Overflow Location:
Cache Migrated Files?:
Collocate?: No
Reclamation Threshold: 2
Offsite Reclamation Limit:
Maximum Scratch Volumes Allowed: 18
Number of Scratch Volumes Used: 13
Delay Period for Volume Reuse: 0 Day(s)
Migration in Progress?: Yes
Amount Migrated (MB): 49,081.16
Elapsed Migration Time (seconds): 1,465
Reclamation in Progress?: No
Last Update by (administrator): CCC
Last Update Date/Time: 08/02/2007 11:28:31
Storage Pool Data Format: Native
Copy Storage Pool(s):
Continue Copy on Error?:
CRC Data: No
Reclamation Type: Threshold
--
Warm regards,
Michael Green
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