Hey achapman,
Thank you for updating me/us on your progress. It is greatly appreciated.
Unfortunately, it is not well documented on the fixes on each version of SnapOS. So, hopefully, the OS upgrade will fix any problems you might be having. Don't know if you know this, but you can create a 3 disk RAID in SnapOS also you can re size this disk too, but that might not pertain to you. This is all via the debug menu and I don't know if you would want to fool around in that area. Just thought I'd tell you.
Concerning you not being able to revert to v3, you can put in one hard drive(with v3 installed) in slot 1 with no HDD in the other slots. Make sure it's in JBOD format then shutdown remove the one drive with v3 and put it a side before you upgrade the OS. You can use this drive to revert back to your v3 simply by reinstalling this single drive with no other drives with the newer version OS them. You will have to wipe the other drives to remove the newer snapos you installed then place them in after slot 2-etc.. The os should transfer the v3 to the other drives that were wiped. Remember to break the RAID in JBOD with the newer Snapos before you revert back to v3
What settings do you have the drives on? CS OR MS? This could make a difference in the drives and the OS behavior. Try one CS and then try the other MS in your testing.
The fail testing method sounds good to me, but I don't know if I would fill the drive up to it's max. Say 1/2 or 3/4 would do just fine. The SnapOS needs 10% free disk space in order for it to work correctly. If you don't leave this amount you could run in to some problems.
Great work achapman! Also, the cpu can be upgraded to I think 933Mhz, but I'd have to check my notes to be sure. I think they came with a 733Mhz.
Quote:
Originally Posted by achapman
I've now got 6 identical Seagates (ST3160212ACE). These are model DB35.2, 160Gb, 7200rpm drives. Initial tests with a 6 disk array are not favourable. I've created a 6 drive RAID5 array successfully, but the disk check on the array fails on reboot with 'unknown drive operation'. The array seems to work OK as basic storage, but if the disk check is failing then there is some doubt about whether the RAID protection will work properly. All the disks test OK individually when formatted as JBOD. If this failure is consistent I will try a 5 disk RAID 5 array next.
Given that I won't be able to revert to V3 firmware, I'll do testing first with my present firmware level. Once I've tried the various configurations on V3, I'll then go to V4.0.829 and see if this allows me more memory and solves any of the issues I get with 160Gb disks on V3.
Any suggestions about particular tests to do on each drive configuration? I was thinking 1. reboot. 2. write to disk until full. 2.reboot. 3. fail one disk. 4. reboot. 5. replace failed disk by adding replacement and rebuild array. 6. final reboot.
I was going to try first 6 disk RAID5 array, then 5 disk RAID 5 array with hot spare.
If six disk RAID 5 doesn't work, then the next most efficient combination on a 12000 would be 3 x 4 disk RAID 5, so it would be important to know that 4 x 160Gb is a working combination. Since this works on other SnapOS platforms I'd be surprised if it doesn't on a 12000.
|