Tape slow...
2004-12-01 03:08:02
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Hi list,
I have a very strange phenomenon. There is a server with an Seagate
Scirroco 12/24Gb DDS3 drive attached. Onto this drive I can put data via
'dd if=/dev/zero of=/dev/nst0 bs=1024 count=100000' (100Mb) in about
thirty seconds. This means a transfer rate of about 3.3Mb/s.
But if I do an amflush of 6547621k it takes forever (about 12h).
What is wrong?
Here the relevant parts of the amanda.conf:
taperalgo smallest
dumporder "SSSSTTTTst"
tapedev "/dev/nst0"
tapetype HP-DAT
define tapetype HP-DAT {
comment "DAT tape drives"
length 11300 mbytes # these numbers are not accurate
filemark 512 bytes # but you get the idea
speed 4500 kbytes
}
How can I debug this strange thing?
Thanks and cheers
Nic'nearly no hair left due to this problem'ki
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