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UMT_solaris_guru
September 20th, 2007, 09:15 PM
I have a fresh install of Zmanda 2.6.2 on RHEL 5. I have a LTO3 tape drive. amcheck is giving the following:
Setting MAX_VOLUME_USAGE to 395313152 not supported for device /dev/nst0

any ideas?

paddy
September 20th, 2007, 09:50 PM
I have a fresh install of Zmanda 2.6.2 on RHEL 5. I have a LTO3 tape drive. amcheck is giving the following:
Setting MAX_VOLUME_USAGE to 395313152 not supported for device /dev/nst0

any ideas?


Please contact support@zmanda.com

Paddy

sunil
September 20th, 2007, 11:09 PM
As amandabackup user get the exact information of your tape with amtapetype command. Accordingly configure amanda.conf and/or tapetypes file. Command execution may take a long time to complete. Have patiance and wait for some time.

amtapetype -e <approx tape size estimate> -f <path to device file>

eg;

amandabackup@gsx:~> amtapetype -e 24GB -f /dev/nst0
Writing 512 Mbyte compresseable data: 36 sec
Writing 512 Mbyte uncompresseable data: 213 sec
WARNING: Tape drive has hardware compression enabled
Estimated time to write 2 * 24576 Mbyte: 20448 sec = 5 h 40 min
wrote 314560 32 Kb blocks in 40 files in 4053 seconds (No space left on device)
wrote 318492 32 Kb blocks in 81 files in 4104 seconds (No space left on device)
define tapetype unknown-tapetype {
comment "just produced by tapetype prog (hardware compression on)"
length 9891 mbytes
filemark 0 kbytes
speed 2483 kps
}

UMT_solaris_guru
October 5th, 2007, 02:28 PM
My LTO-3 drive is a HP Ultrium-960 with G64D firmware. It was not clear whether or not to esamate compressed size or native.

-sh-3.1$ amtapetype -o -e 800GB -f /dev/nst0
Writing 4096 Mbyte compresseable data: 36 sec
Writing 4096 Mbyte uncompresseable data: 58 sec
WARNING: Tape drive has hardware compression enabled
Estimated time to write 2 * 819200 Mbyte: 23200 sec = 6 h 26 min
wrote 12320768 32 Kb blocks in 47 files in 5470 seconds (No space left on device)
wrote 12320768 32 Kb blocks in 94 files in 5656 seconds (No space left on device)
define tapetype unknown-tapetype {
comment "just produced by tapetype prog (hardware compression on)"
length 385024 mbytes
filemark 0 kbytes
speed 70892 kps
}
-sh-3.1$