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 at mavis ~]# du -hs /media/OTOT/2005-11-30 >> 19G /media/OTOT/2005-11-30 >> [root at mavis ~]# >> >> [rj at 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 at mavis log]# uname -r 2.6.9-22.0.1.EL [root at 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 at 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 at 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20051205/2391aa93/attachment-0004.html>