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RocketRaid 1520 on Fedora Core 5 will not boot after kernel upgrade

RocketRaid 1520, with 2 x SATA disk, configured in bios as RAID 0
Single IDE disk

Clean install of FC5 - LVM on sda (Raid Disk), /home mounted
Everything else mounted on hda - I like to keep the OS stuff separate from the user data

Install went well. Created and used a driver disk for the 1520.
System booted
Ran Software update, which updated to the latest kernel.
System now refuses to boot - tries to run fsck with error "no such file /dev/VolGroup00/LogVol00"
Old kernel still boots

I suspect that the problem is the 1520 driver being specific to the old kernel (I'm guessing here), but have no idea what to do.
I'm happy to re-install if needed.
I did read one post on not using the 1520 raid (config as JBOD, I assume), but using Linux RAID instead. Would I still require the driver for the 1520?

Help!
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mikefish
Asked:
mikefish
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1 Solution
 
Kerem ERSOYPresidentCommented:
Hi,

It seems that your driver is conflictig with BIOS etc.  In fact there's a FC 5 driver present at their site here:
http://www.highpoint-tech.com/USA/bios_rr1520.htm

Try to update the BIOS to the latest version and use drivers from the vendor. It seems that your dirver has a problem with the latest kernel. I agree that this is adriver versus kernel thing too.

You can use your RocketRAID 1520 with non RAID configurations too. As soon as you use LVM you are able to do the same RAID 0 with Software raid too. As a matter of fact the adapter is just a SoftwareRAID adapter. It does RAID functionality over the Software Driver. In this case it is better to remove theoverhead by the software and use LVM disk striping is a better idea.

With Hardware RAID adapters it is beter to use the Hardware RAID because they do it faster. Since you already have a Hardware RAID Adapter it is better to use it.  If your M/B supports SATA you don't  even need to use this adapter at all.

JBOD is a different concept. JBOD requires you to have several Disks but they appear to the system as a single disk with a combined capacity of all disks. But it lacks Redundany. It is also not a striping since obviously there's no striping with a JBOD too. So it oly concatanetes disks onoe after another. Thsi is what diferentiates JBOD from RAID.

Cheers,
K
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mikefishAuthor Commented:
thanks for the reply

I used the latest driver for FC5 from the highpoint site. The problem happened when Software Update ran.

Not sure what to do now
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Kerem ERSOYPresidentCommented:
Hi,

As the software having a problem with the new kernel you wll either stay with the old kernel or you will re-install the OS but this time you will configure the adapter to show the drives in single Drive mode. Not RAID. Then you will use the LVM to create a RAID Volume. I will suggest you to use this method. Because your adapter is not a Hardware RAID adapter. It provdes RAID funcitonalty over the Software Driver which in turn works under OS. There's no boviously PErformance advantage whn compared to a Hardware RAID adapter.

BTW RAID 0 is Disk Stirping. IT has only some performance advantage. But when any of the drives get a problem you will loose all data. While in RAID 1 mode you have Disk Mirrorinn and you have 2 drives with same data.

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Kerem ERSOYPresidentCommented:
In fact the adapter you have is mostly provided as an alternative for people who has only PATA.
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mikefishAuthor Commented:
Many thanks.
I have stuck with booting the original kernel.
I also deleted the raid array in the bios, booted, then created a LVM with the 2 SATA disks. All works well now.
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Kerem ERSOYPresidentCommented:
Yr welcome :) I am happy to hear that all works well now.
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