scsi drive error - squid blocking - lost swap.state

I suffered a scsi failure today of variety:

Apr 6 20:37:07 kernel: scsi : aborting command due to timeout : pid
9737610, scsi0
, channel 0, id 1, lun 0 Write (6) 00 00 41 02 00

I was unable to release squid which was blocking in a permanent state
necessitating a physical reboot (shutdown and kill/kill -9 ineffective).
Bummer.

I unmounted and commented out (in squid.conf) the particular drive and
restarted squid with my two remaining spindles.

Later I twice fsck'd the drive with a check for bad blocks prior to
mounting and restarting squid.

The problem is twofold:

1: How can something like this happen/is there a way I could have done
without the reboot (servers are remote located).

2: How come my swap.state file has truncated (fsck with bad block check?
running squid with 2/3 of it's spindles???)

I'm particularly upset, read pissed, because I only just rebuild the
storage in this 8.7GB drive after losing it a month ago (when my IDE/OS
drive failed).

Finally, do I have to delete the 6.5 GB on this drive now that the
swap.state file is 'altered'?

(any comments on the IBM drives shown below ??)

Filesystem 1024-blocks Used Available Capacity Mounted on
/dev/sda1 8589226 6387716 1756110 78% /mnt/cache1
-rw-r--r-- 1 squid squid 114672 Apr 7 02:33 swap.state

Linux 2.2.2 (RH5.2 with all updates)
vendor_id : GenuineIntel
model name : Celeron (Covington)
cpu MHz : 412.371201
MemTotal: 258196 kB
SwapTotal: 133048 kB

Squid Cache: Version 2.1.PATCH2

(scsi0) <Adaptec AIC-7895 Ultra SCSI host adapter> found at PCI 20/0
(scsi0) Wide Channel A, SCSI ID=7, 255/255 SCBs
(scsi0) Warning - detected auto-termination
(scsi0) Please verify driver detected settings are correct.
(scsi0) If not, then please properly set the device termination
(scsi0) in the Adaptec SCSI BIOS by hitting CTRL-A when prompted
(scsi0) during machine bootup.
(scsi0) Cables present (Int-50 NO, Int-68 NO, Ext-68 NO)
(scsi0) Downloading sequencer code... 394 instructions downloaded
(scsi1) <Adaptec AIC-7895 Ultra SCSI host adapter> found at PCI 20/1
(scsi1) Wide Channel B, SCSI ID=7, 255/255 SCBs
(scsi1) Warning - detected auto-termination
(scsi1) Please verify driver detected settings are correct.
(scsi1) If not, then please properly set the device termination
(scsi1) in the Adaptec SCSI BIOS by hitting CTRL-A when prompted
(scsi1) during machine bootup.
(scsi1) Cables present (Int-50 NO, Int-68 NO, Ext-68 NO)
(scsi1) Downloading sequencer code... 394 instructions downloaded
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.10/3.2.4
       <Adaptec AIC-7895 Ultra SCSI host adapter>
scsi1 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.10/3.2.4
       <Adaptec AIC-7895 Ultra SCSI host adapter>
scsi : 2 hosts.
  Vendor: IBM Model: DGVS09U Rev: 0350
  Type: Direct-Access ANSI SCSI revision: 03
Detected scsi disk sda at scsi0, channel 0, id 1, lun 0
  Vendor: IBM Model: DDRS-34560W Rev: S97B
  Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdb at scsi1, channel 0, id 5, lun 0
  Vendor: IBM Model: DDRS-34560W Rev: S97B
  Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdc at scsi1, channel 0, id 6, lun 0
(scsi0:0:1:0) Synchronous at 40.0 Mbyte/sec, offset 8.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 17829870 [8705 MB]
[8.7 GB]
 sda: sda1
(scsi1:0:5:0) Synchronous at 40.0 Mbyte/sec, offset 8.
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 8925000 [4357 MB] [4.4
GB]
 sdb: sdb1
(scsi1:0:6:0) Synchronous at 40.0 Mbyte/sec, offset 8.
SCSI device sdc: hdwr sector= 512 bytes. Sectors= 8925000 [4357 MB] [4.4
GB]
 sdc: sdc1

-- 
----------------------------------------------------------------------
Alastair Waddell		o Tel +61 3 96400400
Legion Internet	                 
Queen Street, Melbourne		o Full featured VISP Facility
Virtual Services + DNS Maintenance + ISP Co-location + Internetworking