Hi!
I recently upgraded to ADSM/2 V2 (CSD Level 21020),
and I believe this version waits occassionally for free tape slot even
if there is one free.
Example:
Configuration: 2 tape drives of one device class DAT in one manual
library. Mountlimit=2.
Storage Pool PCBSDISK has 2 migration processes defined.
At some time, there is one tape PCBS10 mounted, used for RESTORE
Session.
During this, 2 migration processes for PCBSDISK start.
One of them (#8) can mount a tape, the second (#9) has to wait.
Restore ends, leaving tape PCBS10 in IDLE state.
But - migration process #9 still waits for mount point,
tape PCBS10 remains in MOUNT/IDLE state.
DISMOUNTING the tape manually does not help - process #9 still waits.
CANcelling process #8 releases its tape.
Because the disk storage pool PCBSDISK is still candidate for migration,
a new migration process #10 is started instead. Now, each of both
processes
requires a tape and is able to mount it.
Can someone explain me this behaviour ?
Juraj SALAK
KEBA Banking
Linz, Austria
ADSM > Q SES
Sess Comm. Sess Wait Bytes Bytes Sess
Platform Client Name
Number Method State Time Sent Recvd Type
------ ------ ------ ------ ------- -------
----- -------- --------------------
2 Tcp/Ip Run 0 S 13.5 K 114
2 Tcp/Ip Run 0 S 13.5 K 114
Admin OS/2 VIEW
3 Tcp/Ip Run 0 S 9.2 K 114
Admin OS/2 VIEW
13 Tcp/Ip IdleW 6 S 40.4 M 68.5 M Node
OS/2 BTSDOM
21 Tcp/Ip Run 0 S 39.3 K 1.5 K
Admin OS/2 SALADSMADMIN
ADSM > Q PROC
Process Process Description Status
Number
-------- --------------------
-------------------------------------------------
8 Migration Disk Storage Pool PCBSDISK, Moved
8 Migration Disk Storage Pool PCBSDISK, Moved
Files: 1235,
Moved Bytes: 167,673,856,
Unreadable Files: 0,
Unreadable Bytes: 0. Current File
(bytes):
1,200,128
Current output volume: PCBS35.
9 Migration Disk Storage Pool PCBSDISK, Moved
Files: 0, Moved
Bytes: 0, Unreadable Files: 0,
Unreadable Bytes:
0. Current File (bytes): 4,096
Waiting for mount point in device
class DAT
(6237 seconds).
ADSM > Q MOUNT
ANR8330I DAT volume PCBS35 is mounted R/W in drive TAPE2 (TAPE05$),
status: IN USE.
ANR8330I DAT volume PCBS10 is mounted R/W in drive TAPE1 (TAPE06$),
status: IDLE.
ANR8334I 1 volumes found.
ADSM > Q DEVC DAT
Device Device Storage Device Format
Est/Max Mount
Class Access Pool Type
Capacity Limit
Name Strategy Count
(MB)
--------- ---------- ------- --------- ------
-------- -----
DAT Sequential 5 4MM DDS2C
DAT Sequential 5 4MM DDS2C
0.0 2
ADSM > DISMOUNT vol PCBS10
*** after minutes, process 9 still waiting for mount point***
ADSM > CANCEL PROC 8
ADSM > Q PROC PROC
9 Migration Disk Storage Pool PCBSDISK, Moved
Files: 0, Moved
Bytes: 0, Unreadable Files: 0,
Unreadable Bytes:
0. Current File (bytes): 4,096
Waiting for mount of output
volume PCBS23 (168
seconds).
10 Migration Disk Storage Pool PCBSDISK, Moved
Files: 0, Moved
Bytes: 0, Unreadable Files: 0,
Unreadable Bytes:
0. Current File (bytes): 110,592
Waiting for mount of output
volume PCBS22 (132
seconds).
** here I can load tapes an both migration processes can run. ***
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