On 17/01/14 10:55, Jon LaBadie wrote: > On Thu, Jan 16, 2014 at 06:04:14PM -0500, Michael Stauffer wrote: >> Hi, >> >> I'm setting up amanda 3.3.4. I can't find a definiton for changer's drives >> (IBM ULTRIUM-TD5 LTO-5) in /etc/amanda/template.d/tapetypes >> >> Can someone point me to a source for this, or to where I can learn how to >> determine the params I need for the drives? Thanks >> > The command amtapetype should be in your amanda server installation. > It can be used to determine the values for your site. > > The only tapetype parameter amanda actually uses is capacity. > So you could hand create a definition and be close enough > for government work. > > Jon
Created on OmniOS v11 r151006:
$ amtapetype -f -b 524288 -t ULT3580-TD5 /dev/rmt/0b 2>&1 | tee
/etc/opt/csw/amanda/weekly/tapetype-512k-block
Checking for FSF_AFTER_FILEMARK requirement
Applying heuristic check for compression.
Wrote random (uncompressible) data at 85721088 bytes/sec
Wrote fixed (compressible) data at 295261525.333333 bytes/sec
Compression: enabled
Writing one file to fill the volume.
Wrote 1519480995840 bytes at 85837 kb/sec
Got LEOM indication, so drive and kernel together support LEOM
Writing smaller files (15194390528 bytes) to determine filemark.
device-property "FSF_AFTER_FILEMARK" "false"
define tapetype ULT3580-TD5 {
comment "Created by amtapetype; compression enabled"
length 1483868160 kbytes
filemark 868 kbytes
speed 85837 kps
blocksize 512 kbytes
}
# for this drive and kernel, LEOM is supported; add
# device-property "LEOM" "TRUE"
# for this device.
I ran amtapetype for a number of different block sizes (32k, 256k, 512k and
2048k) but I found that
block sizes over 512 kbytes gave me driver issues and no LEOM capability. My
amdump reports show
fairly reasonable tape streaming speeds:
Avg Tp Write Rate (k/s) 143476 143842 5723.0
If you have a different system just run amtapetype and be patient. It will be
worth the wait.
Regards,
Tom
Tom Robinson
IT Manager/System Administrator
MoTeC Pty Ltd
121 Merrindale Drive
Croydon South
3136 Victoria
Australia
T: +61 3 9761 5050
F: +61 3 9761 5051
E: tom.robin...@motec.com.au
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