Syv Ritch wrote:
> Robert wrote:
>
>> Peter Farrow wrote:
>>
>>> Dear All,
>>>
>>> I tried a USB2 Maxtor One touch II external hard disk on a couple of
>>> my Centos 4.2 boxes and found it initiallised the SCSI subsystem ok
>>> and added device "sda". But the performance is miserable, yet the
>>> same hardware running XP the performance is satisfactory.
>>>
>>> HDPARM gives results varying from 120k/sec to , at its peak 4.75M/s
>>> on a USB 2 machine, still very poor by any stretch.
>>>
>>> On a twin CPU USB 1 machine it give a steady 1M/sec, which is
>>> consistently slow, which is better than erratically slow ( :-) )
>>>
>>> Still dog slow, wondered if anyone has seen this, and wondered if
>>> the firewire interface would be better? (I need to get a cable to
>>> try this).
>>
>>
>>
>> I back up weekly to a Maxtor OneTouch (original) USB2-connected hard
>> drive. This happens while I sleep but it looks like last Wednesday
>> morning, it took 36 minutes to to copy 19GB.
>>
>> [root@mavis ~]# du -hs /media/OTOT/2005-11-30
>> 19G /media/OTOT/2005-11-30
>> [root@mavis ~]#
>>
>> [rj@mavis ~]$ cat backup_progress_2005-11-30
>> Wed Nov 30 02:02:07 CST 2005 Removing /media/OTOT/2005-11-09
>> Backup to /media/OTOT/2005-11-30 Started at Wed Nov 30 02:06:13
>> CST 2005
>> Wed Nov 30 02:06:14 CST 2005 Completed: /bin
>> Wed Nov 30 02:06:15 CST 2005 Completed: /boot
>> <snip>
>> Wed Nov 30 02:42:14 CST 2005 Completed: /var
>> Filesystem 1K-blocks Used Available Use% Mounted on
>> /dev/sdb2 152206916 132579164 11896072 92% /media/OTOT
>> /dev/sdb2 successfully unmounted from /media/OTOT
>> All Finished at Wed Nov 30 02:42:14 CST 2005
>> Looks like that averages out to
>> about 8.8MB/sec
>> I'm running an Athlon 2600+, 2GHz, 512MB on an ASUS A7N8X.
>> I hope this helps.
>
>
> No, not at all. What's the setup?
> How is the USB configured?
> How's the drive configured, formatted ext3, vfat...
>
Drive 0d49:7010 --> >--hub 05e3:0605 --> >--motherboard rear jack.
[root@mavis log]# uname -r
2.6.9-22.0.1.EL
[root@mavis log]# lsusb
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 003: ID 0764:0005 Cyber Power System, Inc. Cyber
Power UPS
Bus 002 Device 002: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 011: ID 0d49:7010 Maxtor
Bus 001 Device 007: ID 03f0:3404 Hewlett-Packard DeskJet 6122
Bus 001 Device 006: ID 1267:0103 Logic3 / SpectraVideo plc
Bus 001 Device 005: ID 05e3:0605 Genesys Logic, Inc.
Bus 001 Device 004: ID 0409:0059 NEC Corp. HighSpeed Hub
Bus 001 Device 001: ID 0000:0000
[root@mavis log]# fdisk -l /dev/sda
Disk /dev/sda: 163.9 GB, 163927556096 bytes
255 heads, 63 sectors/track, 19929 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 1 678 5446003+ c W95 FAT32 (LBA)
/dev/sda2 679 19929 154633657+ 83 Linux
[root@mavis log]#
for dir in bin boot etc home initrd lib lost+found misc opt root \
sbin selinux srv tftpboot \
usr var ; do
find /$dir -depth -print0 | cpio --null -pmd $UD/$DT
echo `date` Completed: /$dir >>$PF
done
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