This is more a TSM internal logic question than anything else. I am seeing
times that a TSM server has more tapes mounted than would be necessary for
Administrative tasks like migration and backup of storage pools. When and
how does this happen?
The details.... Looking at system queries for this particular instance, I
can see that there is one migration task with an output tape volume in use
and a backup stgpool task waiting for a mount point in devclass 3590-E1A.
(Devclass 3590-E1A has a mount limit of DRIVES, which we have four (4).) So,
I am thinking that three (3) client tasks are, in fact, utilizing physical
tape drives. Notice also that there are twenty-three (23) client tasks with
MediaW as the session state. We have not begun sending client data direct to
tape because of the limited number of tape drives available. To date, this
performance enhancement has not been an issue.
What is TSM doing? How can I better understand and provide the best services
with the resources I have? Are there TSM classes that deal with this type of
concept?
Environment is TSM 3.7.2 server on a 3466-C00 (AIX 4.3.2) with a 3494
library containing four (4) 3590-E1A drives. (Soon to be increased by 2 more
3590-E1A drives and 144GB of SSA disk.)
Here I include the results of four commands. Query STG, Q PRocesses, Q
Mounts, Q SEsssions F=D.
Thanks in advance for reviewing this long post...
Tivoli Storage Manager
Command Line Administrative Interface - Version 4, Release 1, Level 2.0
(C) Copyright IBM Corporation, 1990, 1999, All Rights Reserved.
Session established with server FSPHNSM1: AIX-RS/6000
Server Version 3, Release 7, Level 2.0
Server date/time: 03/04/2001 01:00:24 Last access: 03/04/2001 00:30:01
Storage Device Estimated Pct Pct High
Low Next Stora-
Pool Name Class Name Capacity Util Migr Mig
Mig ge Pool
(MB) Pct
Pct
----------- ---------- ---------- ----- ----- ----
--- -----------
--- -----------
ARCHIVE DISK 81,370.0 48.8 48.3 74
ARCHIVE DISK 81,370.0 48.8 48.3 74
50 ARCHIVE_TA-
PE
ARCHIVE_CO- 3590-E1A 18,071,904 39.7
PY .7
ARCHIVE_TA- 3590-E1A 17,506,379 40.9 47.0 90
70
PE .0
DIR DISK 9,908.0 21.3 21.3 90
70 DIR_TAPE
DIR_COPY 3590-E1A 200,000.0 0.7
DIR_TAPE 3590-E1A 0.0 0.0 0.0 90
70
DISKPOOL DISK 0.0 0.0 0.0 90
70
SERVER DISK 250,777.0 80.6 79.8 74
50 SERVER_TAPE
SERVER_COPY 3590-E1A 23,524,586 34.7
.7
SERVER_TAPE 3590-E1A 24,022,339 34.0 57.0 90
70
.9
WORKSTN DISK 9,231.0 60.5 60.5 90
50 WORKSTN_TA-
PE
WORKSTN_TA- 3590-E1A 1,290,919. 2.2 4.0 90
70
PE 3
Process Process Description Status
Number
-------- --------------------
-------------------------------------------------
-------------------------------------------------
255 Migration Disk Storage Pool SERVER, Moved Files:
255 Migration Disk Storage Pool SERVER, Moved Files:
241, Moved
Bytes: 141,957,177,344, Unreadable
Files: 0,
Unreadable Bytes: 0. Current Physical
File
(bytes): 4,570,263,552
Current output volume: K20181.
257 Backup Storage Pool Primary Pool SERVER, Copy Pool
SERVER_COPY, Files
Backed Up: 0, Bytes Backed Up: 0,
Unreadable
Files: 0, Unreadable Bytes: 0.
Current Physical
File (bytes): 24,576
Waiting for mount point in device
class 3590-E1A
(13 seconds).
ANR8330I 3590 volume K20020 is mounted R/W in drive 3590DRIVE4 (/dev/rmt4),
status: IN USE.
ANR8330I 3590 volume K20181 is mounted R/W in drive 3590DRIVE2 (/dev/rmt2),
status: IN USE.
ANR8330I 3590 volume K20065 is mounted R/W in drive 3590DRIVE1 (/dev/rmt1),
status: IN USE.
ANR8330I 3590 volume K20314 is mounted R/W in drive 3590DRIVE3 (/dev/rmt3),
status: IN USE.
ANR8334I 4 volumes found.
Sess Comm. Sess Wait Bytes Bytes Sess
Platform Client Name Media Access Status
User Name Date/Time First Data Sent
Number Method State Time Sent Recvd Type
------ ------ ------ ------ ------- ------- -----
-------- --------------------
-------- --------------------
---------------------------------------- --------------------
---------------------------------------- --------------------
----------------------------------------
----------------------------------------
15,523 Tcp/Ip IdleW 8 S 142.7 K 4.3 M Node
15,523 Tcp/Ip IdleW 8 S 142.7 K 4.3 M Node
WinNT GNWHPAR02
16,143 Tcp/Ip RecvW 0 S 17.2 K 27.8 G Node
WinNT GNWHPAR02
03/03/2001 10:30:22
16,369 Tcp/Ip IdleW 17.3 M 54.7 M 6.5 K Node
AIX CTNHPM01
16,379 Tcp/Ip MediaW 17.3 M 2.1 K 9.7 G Node
AIX CTNHPM01 Waiting for mount point in device
class 03/03/2001 21:01:26
3590-E1A (1040 seconds).
16,389 Tcp/Ip IdleW 4.0 H 1.2 K 298 Node
WinNT CTNHCTST
16,396 Tcp/Ip IdleW 4.1 M 24.2 M 2.3 K Node
WinNT CTNHCTST
16,404 Tcp/Ip RecvW 0 S 2.8 K 74.4 G Node
WinNT CTNHCTST
03/03/2001 21:04:11
16,445 Tcp/Ip IdleW 14 S 10.9 K 185.5 K Node
WinNT GNWHPAR04
16,446 Tcp/Ip RecvW 0 S 3.1 K 3.4 G Node
WinNT GNWHPAR04
03/03/2001 22:59:11
16,452 Tcp/Ip RecvW 0 S 32.3 K 31.3 G Node
TDP MSE- CTNHEMAIL07_EXCH Current output volume: K20065.
03/03/2001 23:39:27
xchg NT
16,513 Tcp/Ip IdleW 33.6 M 24.5 M 964 Node
WinNT RHNT03
16,518 Tcp/Ip IdleW 35.0 M 3.8 M 811 Node
WinNT RHNT01
16,533 Tcp/Ip IdleW 13.5 M 44.4 M 1.2 K Node
WinNT RHNT03
16,565 Tcp/Ip IdleW 3 S 22.8 M 918 Node
WinNT RHNT01
16,641 Tcp/Ip IdleW 32.0 M 32.0 M 2.6 K Node
AIX CTNHCAD12
16,644 Tcp/Ip IdleW 17.6 M 542 31.5 M Node
AIX CTNHCAD12 Current output volume: K20314.
03/04/2001 00:04:52
16,650 Tcp/Ip IdleW 10 S 115.6 M 10.7 K Node
AIX CTNHCAD15
16,654 Tcp/Ip IdleW 23 S 1,016 23.0 M Node
AIX CTNHCAD15
03/04/2001 00:05:41
16,692 Tcp/Ip IdleW 45.7 M 2.9 M 785 Node
WinNT CTNHECSTAGE1
16,701 Tcp/Ip IdleW 32.8 M 37.8 M 981 Node
WinNT CTNHECSTAGE1
16,720 Tcp/Ip IdleW 44.7 M 2.8 M 614 Node
WinNT BONHNT04
16,724 Tcp/Ip IdleW 19 S 23.3 M 985 Node
WinNT BONHNT04
16,726 Tcp/Ip MediaW 33.4 M 726 40.1 M Node
WinNT RHNT03 Waiting for mount point in device
class 03/04/2001 00:08:59
3590-E1A (2004 seconds).
16,739 Tcp/Ip IdleW 19.0 M 15.1 M 1.1 K Node
WinNT CTNHCISNA01
16,742 Tcp/Ip IdleW 43.8 M 3.0 M 622 Node
WinNT BONHNT03
16,745 Tcp/Ip IdleW 19.1 M 24.4 M 758 Node
WinNT CTNHCISNA01
16,758 Tcp/Ip IdleW 34.0 M 5.3 M 728 Node
WinNT CTNHIISDEV
16,768 Tcp/Ip IdleW 17.2 M 9.9 M 1.0 K Node
WinNT CTNHGRAPHICS1
16,774 Tcp/Ip IdleW 1 S 19.6 M 974 Node
WinNT CTNHGRAPHICS1
16,790 Tcp/Ip MediaW 33.3 M 385 981.3 K Node
WinNT RHNT03 Waiting for mount point in device
class 03/04/2001 00:12:20
3590-E1A (2000 seconds).
16,822 Tcp/Ip MediaW 32.8 M 457 782.9 K Node
WinNT CTNHECSTAGE1 Waiting for mount point in device
class 03/04/2001 00:13:47
3590-E1A (1967 seconds).
16,834 Tcp/Ip MediaW 21.1 M 1.8 K 1.4 M Node
WinNT BONHNT04 Waiting for mount point in device
class 03/04/2001 00:14:49
3590-E1A (1263 seconds).
16,864 Tcp/Ip MediaW 25.2 M 1.4 K 17.6 M Node
WinNT BONHNT03 Waiting for mount point in device
class 03/04/2001 00:16:57
3590-E1A (1514 seconds).
16,874 Tcp/Ip IdleW 34.2 M 8.6 M 271.4 K Node
HPUX CTNHUG02
16,876 Tcp/Ip IdleW 19.1 M 85.5 M 5.1 K Node
HPUX CTNHUG01
16,878 Tcp/Ip MediaW 29.1 M 1.1 K 14.3 M Node
WinNT CTNHGRAPHICS1 Waiting for mount point in device
class 03/04/2001 00:17:36
3590-E1A (1743 seconds).
16,879 Tcp/Ip MediaW 31.4 M 483 91.9 M Node
HPUX CTNHUG01 Waiting for mount point in device
class 03/04/2001 00:17:39
3590-E1A (1882 seconds).
16,885 Tcp/Ip MediaW 26.9 M 610 34.9 M Node
WinNT CTNHIISDEV Waiting for mount point in device
class 03/04/2001 00:18:12
3590-E1A (1616 seconds).
16,888 Tcp/Ip IdleW 35.0 M 3.9 M 672 Node
WinNT CTNHPROXY1
16,891 Tcp/Ip MediaW 34.2 M 428 7.5 M Node
HPUX CTNHUG02 Waiting for mount point in device
class 03/04/2001 00:18:38
3590-E1A (2052 seconds).
16,892 Tcp/Ip IdleW 4.1 M 286.7 K 2.2 K Node
WinNT CTNHPROXY1
16,893 Tcp/Ip MediaW 30.0 M 979 1.8 M Node
WinNT CTNHCISNA01 Waiting for mount point in device
class 03/04/2001 00:30:26
3590-E1A (1798 seconds).
16,895 Tcp/Ip IdleW 2 S 2.9 K 6.9 M Node
WinNT CTNHPROXY1
03/04/2001 00:18:59
16,905 Tcp/Ip IdleW 16.8 M 9.9 M 921 Node
WinNT CTNHCORSTR01
16,909 Tcp/Ip IdleW 35.1 M 3.8 M 680 Node
WinNT CTNHCORIIS07
16,910 Tcp/Ip IdleW 34.0 M 6.0 M 720 Node
WinNT CTNHCORIIS06
16,915 Tcp/Ip IdleW 6 S 57.6 M 2.1 K Node
WinNT CTNHCORIIS06
16,916 Tcp/Ip IdleW 23.1 M 33.2 M 973 Node
WinNT CTNHCORIIS07
16,917 Tcp/Ip IdleW 9.0 M 9.8 M 884 Node
WinNT CTNHCORSTR01
16,920 Tcp/Ip MediaW 34.9 M 370 639.0 K Node
WinNT RHNT01 Waiting for mount point in device
class 03/04/2001 00:19:26
3590-E1A (2093 seconds).
16,943 Tcp/Ip MediaW 28.8 M 439 7.7 M Node
WinNT CTNHCORSTR01 Waiting for mount point in device
class 03/04/2001 00:21:50
3590-E1A (1727 seconds).
16,960 Tcp/Ip Run 0 S 356 3.1 M Node
WinNT CTNHCORIIS07 Current output volume: K20020.
03/04/2001 00:25:06
16,964 Tcp/Ip MediaW 33.8 M 363 153.1 K Node
WinNT CTNHCORIIS06 Waiting for mount point in device
class 03/04/2001 00:26:33
3590-E1A (2030 seconds).
16,967 Tcp/Ip MediaW 33.2 M 314.0 K 566 Node
HPUX BONHI2 Waiting for mount point in device
class 03/04/2001 00:27:13
3590-E1A (1991 seconds).
16,968 Tcp/Ip MediaW 32.4 M 356 91.5 M Node
WinNT CTNHECSTAGE1 Waiting for mount point in device
class 03/04/2001 00:27:49
3590-E1A (1945 seconds).
16,978 Tcp/Ip MediaW 27.6 M 351 292.3 K Node
WinNT CTNHGRAPHICS1 Waiting for mount point in device
class 03/04/2001 00:32:50
3590-E1A (1654 seconds).
16,979 Tcp/Ip MediaW 25.8 M 2.0 K 122.4 K Node
WinNT CTNHIISDEV Waiting for mount point in device
class 03/04/2001 00:33:00
3590-E1A (1550 seconds).
16,980 Tcp/Ip MediaW 26.7 M 357 4.0 M Node
WinNT CTNHCORIIS07 Waiting for mount point in device
class 03/04/2001 00:33:39
3590-E1A (1603 seconds).
16,981 Tcp/Ip MediaW 25.8 M 369 191.6 K Node
WinNT CTNHCISNA01 Waiting for mount point in device
class 03/04/2001 00:34:31
3590-E1A (1545 seconds).
16,988 Tcp/Ip MediaW 22.2 M 357 496.9 K Node
WinNT CTNHCORSTR01 Waiting for mount point in device
class 03/04/2001 00:38:09
3590-E1A (1334 seconds).
16,995 Tcp/Ip IdleW 18.9 M 369 2.7 K Node
WinNT CTNHCORIIS06
03/04/2001 00:41:29
17,000 Tcp/Ip MediaW 9.1 M 351 179.4 K Node
WinNT BONHNT04 Waiting for mount point in device
class 03/04/2001 00:49:50
3590-E1A (543 seconds).
17,005 Tcp/Ip MediaW 6.4 M 322.7 K 574 Node
HPUX LATHSAPD Waiting for mount point in device
class 03/04/2001 00:54:01
3590-E1A (384 seconds).
17,012 Tcp/Ip Run 0 S 127 163 Admin
WinNT ODBC
ANS8002I Highest return code was 0.
Thanks in advance,
John G. Talafous IS Technical Principal
The Timken Company Global Software Support
P.O. Box 6927 Data Management
1835 Dueber Ave. S.W. Phone: (330)-471-3390
Canton, Ohio USA 44706-0927 Fax : (330)-471-4034
talafous AT timken DOT com http://www.timken.com
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