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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