HOT SWAP PROBLEM using hp4100 server series

Alex (devel@qnet.ro)
Tue, 24 Sep 2002 13:50:50 +0300


Hello linux experts,

I don`t know if i come to the right place

I have a HP 4100 server with LSI 53c1010R SCSI controller. I use
RedHat7.3 os with default kernel 2.4.18-3. Also i have 3 scsi drives
36G Ultra3 firmware HP. All thins are ok till here.

I need some help to test HOT SWAP feature for this drives. I read some
documentation and i saw that HOT SWAP may work if my driver for
scsi-controller support re-scanning the bus.

[snip]
Normal SCSI hardware is not hot-swappable either. It may however work.
If your SCSI driver supports re-scanning the bus, and removing and
appending devices, you may be able to hot-swap devices.

I try to check if this feature works for me and don`t. If i remove any
scsi drive, this device remain in /proc until will be removed manually,
or using a script named rescan-scsi-bus.sh which i found it on google.

I try to obtain some additional info and i saw that for my
scsi-controller has 2 active drivers: one older named sym53cxx.o and
one newer named sym53cxx_2.o!
I don`t have for the moment access to this computer but i remember that
on default installation, redhat assigned the old driver to my
scsi-controller.

I want to know if i change the driver with this new one, i can use the
HOT SWAP feature!

Are necessary additional settings to be made when i load the new driver
or on the system configuration?

Any success story will be appreciated.

Regards,

Alex

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