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List: adsm-l
Subject: Simultaneous tape use?
From: Fred Johanson <Fred () UCHICAGO ! EDU>
Date: 2007-07-26 20:38:29
Message-ID: 3471E360C2670848B7AEAE16CE3AAD1329E4C3 () EVS01 ! ad ! uchicago ! edu
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Is it possible for a tape to be used by two users simultaneously? It
certainly looks like it.
The results of 'Q MO':
ANR8330I 3592 volume C30274 is mounted R/W in drive DR9995 (/dev/rmt15),
status: IN USE.
ANR8330I 3592 volume C31093 is mounted R/W in drive DR55337
(/dev/rmt11),
status: IN USE.
ANR8330I 3592 volume C30298 is mounted R/W in drive DR0120 (/dev/rmt13),
status: IN USE.
ANR8330I 3592 volume C03230 is mounted R/W in drive DR55304 (/dev/rmt9),
status: IN USE.
ANR8330I 3592 volume C30309 is mounted R/W in drive DR5451 (/dev/rmt0),
status:
IN USE.
The results of 'Q PR':
Process Process Description Status
Number
-------- --------------------
-------------------------------------------------
38 Backup Storage Pool Primary Pool SERVDISKPOOL, Copy Pool
OFFTAPEPOOL,
Files Backed Up: 104033, Bytes Backed Up:
119,833,665,536, Unreadable Files: 0,
Unreadable
Bytes: 0. Current Physical File (bytes):
8,043,745,280 Current output volume:
C30274.
40 Backup Storage Pool Primary Pool SQLDISKPOOL, Copy Pool
OFFTAPEPOOL,
Files Backed Up: 615, Bytes Backed Up:
250,397,048,832, Unreadable Files: 0,
Unreadable
Bytes: 0. Current Physical File (bytes):
3,839,164,416 Current output volume:
C31093.
42 Migration Disk Storage Pool SERVDISKPOOL, Moved
Files:
9301, Moved Bytes: 197,894,979,584,
Unreadable
Files: 0, Unreadable Bytes: 0. Current
Physical
File (bytes): 10,488,971,264 Current
output
volume: C03230.
43 Migration Disk Storage Pool SERVDISKPOOL, Moved
Files:
7456, Moved Bytes: 130,884,796,416,
Unreadable
Files: 0, Unreadable Bytes: 0. Current
Physical
File (bytes): 8,043,745,280 Current
output
volume: C30309.
44 Migration Disk Storage Pool SERVDISKPOOL, Moved
Files:
5441, Moved Bytes: 151,328,727,040,
Unreadable
Files: 0, Unreadable Bytes: 0. Current
Physical
File (bytes): 144,166,912 Current output
volume:
C30298.
The above are processes and what follows is a backup session.
Client Session Tape Volume
------------------ ----------- -------------
OIA 11156 C30298
The client session is sharing the tape with process 44. Both are
apparently writing. I've never seen this before.
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