[Dump-users] Some test data on VXA-320 vs SATA hard drive

[Todd a. M. C. <Tod...@ve...>]

Hi All,

    I collected up some test data on Ecrix/Exabyte/
Tandberg/Company of the week VXA 320, vs a
SATA hard drive.  I think you all will find
it interesting.

    I think I am going to switch to removable hard
drives for medium business servers.  Nine times
faster and I never have to call tech support.

--T


# vxaTool /dev/sg1
vxaTool V4.62  --  Copyright (c) 1996-2006, Exabyte Corp.

Tape Drive identified as VXA320
/dev/sg1 - Vendor    : EXABYTE
/dev/sg1 - Product ID: VXA-3
/dev/sg1 - Firmware  : 3221
/dev/sg1 - Serialnum : 0088124249
/dev/sg1 - Cleaning  : 22 Tape Motion minutes ago
/dev/sg1 - This tape : 26 times loaded into a drive


#cat /sys/block/sda/queue/scheduler
noop [anticipatory] deadline cfq

# uname -r
2.6.18-53.1.14.el5 (Cent OS 5.1)


#! /bin/bash -x
mt -f /dev/nst0 rewind
dump -0a -f /dev/nst0 /root
mt -f /dev/nst0 offline

   DUMP: Closing /dev/nst0
   DUMP: Volume 1 completed at: Fri Mar 14 18:16:38 2008
   DUMP: Volume 1 152390 blocks (148.82MB)
   DUMP: Volume 1 took 0:01:18
   DUMP: Volume 1 transfer rate: 1953 kB/s
   DUMP: 152390 blocks (148.82MB) on 1 volume(s)
   DUMP: finished in 77 seconds, throughput 1979 kBytes/sec


#! /bin/bash -x
dump -0a -f /export/eraseme.dump /root

   DUMP: Closing /export/eraseme.dump
   DUMP: Volume 1 completed at: Fri Mar 14 18:07:51 2008
   DUMP: Volume 1 162650 blocks (158.84MB)
   DUMP: Volume 1 took 0:00:09
   DUMP: Volume 1 transfer rate: 18072 kB/s
   DUMP: 162650 blocks (158.84MB) on 1 volume(s)


2.6.9-67.EL (Cent OS 4.6 rescue mode)
dump -0a -f /dev/nst0 /mnt/sysimage/root

   DUMP: Closing /dev/nst0
   DUMP: Volume 1 completed at: Sat Mar 15 02:47:57 2008
   DUMP: Volume 1 156740 blocks (153.07MB)
   DUMP: Volume 1 took 0:01:14
   DUMP: Volume 1 transfer rate: 2118 kB/s
   DUMP: 156740 blocks (153.07MB) on 1 volume(s)
   DUMP: finished in 73 seconds, throughput 2147 kBytes/sec