I've added a USB 2.0 PCI card and 3 external 250GB USB 2.0 hard disks to
a server 9.1 system. The disks partition correctly and become /dev/(sda,
sdb, sdc). I'm using them as an archival backup system. During the
transfer of data from one disk to another there will be a write failure and
when I check I'll find, for example, /dev/sdb has become /dev/sdd. Using
fdisk I'll see no /dev/sdb but can see /dev/sdd. I can then mount /dev/sdd
and see the partially transferred data. I can get the disk back to being
/dev/sdb by rebooting. This is a big problem. Any ideas?

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Todd Seeleman, Systems Analyst
Penn Graduate School of Education
3440 Market Street, Rm 477 email:
Philadelphia, PA. 19104-3325 phone: 215-573-8378
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