I'm using CentOS5 64bit on a system with a 3ware 9650SE card.
I installed the OS using the driver disk files provided by 3ware. It worked fine with the original CentOS5 kernel.
After doing a "yum update", which also installed an updated kernel, the system didn't work after a reboot, using the new kernel. I rebooted the old kernel, moved the 3w-9xxx.ko file from /lib/modules/2.6.18-8.el5/updates to /lib/modules/2.6.18-8.1.1.el5/updates then did this:
mkinitrd -v -f /boot/initrd-2.6.18-8.1.1.el5.img 2.6.18-8.1.1.el5
The initrd image for the new kernel was rebuilt without apparent issues. I booted up the new kernel and now it seems to work fine.
So here's my question: The system _appears_ to work fine with the updated kernel and the driver module from 3ware that was made for the original kernel. But this is a machine that is supposed to be very reliable, so I'm wondering, do I have to rebuild the driver for the new kernel, or can I just use the existing driver version without problems? The emphasis here is on reliability.
Florin Andrei wrote:
I rebooted the old kernel, moved the 3w-9xxx.ko file from /lib/modules/2.6.18-8.el5/updates to /lib/modules/2.6.18-8.1.1.el5/updates then did this:
copied, not "moved"
Florin Andrei wrote:
I'm using CentOS5 64bit on a system with a 3ware 9650SE card.
What kind of performance are you seeing with this card? I've just installed CentOS5 64-bit on one of my sandbox systems today and it's got a 9550SX with 8 500gig Seagate barracudas in RAID0 config. Performance seems to have improved a bit compared to 4.4. I'm now seeing about 200MB/sec for writes and about 405MB/sec for reads. Fortunately, the 9550 driver seems to be included in the kernel so doing updates hasn't broken things for me. :)
I noticed a lot of 3rd party apps haven't caught up yet so there are still issues with missing/conflicting libs for all the naughty bits (various mpeg codecs/tools/players/etc).
Cheers,
Florin Andrei wrote:
The system _appears_ to work fine with the updated kernel and the driver module from 3ware that was made for the original kernel. But this is a machine that is supposed to be very reliable, so I'm wondering, do I have to rebuild the driver for the new kernel, or can I just use the existing driver version without problems? The emphasis here is on reliability.
just as these .ko worked fine in centos-4 from kernel to kernel, they should really continue to work fine in centos-5, you wont need to rebuild them at all, till such time as this driver gets adopted upstream into the distro kernel and you dont need it anymore :)
- KB
Karanbir Singh wrote:
just as these .ko worked fine in centos-4 from kernel to kernel, they should really continue to work fine in centos-5, you wont need to rebuild them at all, till such time as this driver gets adopted upstream into the distro kernel and you dont need it anymore :)
I see. That's because the kernel updates are very similar to the original kernel, nothing much changes with a kernel update, just minimal changes to fix bugs, right?
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chrism＠imntv.com -
Florin Andrei -
Karanbir Singh