Re: Frequent SATA errors / port timeouts in 2.6.18.3?

2006-12-14 Thread David Greaves
Patrik Jonsson wrote: Hi all, this may not be the best list for this question, but I figure that the number of disks connected to users here should be pretty big... I upgraded from 2.6.17-rc4 to 2.6.18.3 about a week ago, and I've since had 3 drives kicked out of my 10-drive RAID5 array.

Re: disappointed with 3ware 9550sx

2006-12-14 Thread Rob Bray
i want to say up front that i have several 3ware 7504 and 7508 cards which i am completely satisfied with. i use them as JBOD, and they make stellar PATA controllers (not RAID controllers). they're not perfect (they're slow), but they've been rock solid for years. not so the 9550sx. i've

Re: [RFC: 2.6 patch] simplify drivers/md/md.c:update_size()

2006-12-14 Thread Doug Ledford
On Fri, 2006-12-15 at 01:19 +0100, Adrian Bunk wrote: While looking at commit 8ddeeae51f2f197b4fafcba117ee8191b49d843e, I got the impression that this commit couldn't fix anything, since the size variable can't be changed before fit gets used. Is there any big thinko, or is the patch below

Re: [RFC: 2.6 patch] simplify drivers/md/md.c:update_size()

2006-12-14 Thread Adrian Bunk
On Thu, Dec 14, 2006 at 07:36:35PM -0500, Doug Ledford wrote: On Fri, 2006-12-15 at 01:19 +0100, Adrian Bunk wrote: While looking at commit 8ddeeae51f2f197b4fafcba117ee8191b49d843e, I got the impression that this commit couldn't fix anything, since the size variable can't be changed before

Re: [ANNOUNCE] RAIF: Redundant Array of Independent Filesystems

2006-12-14 Thread Nikolai Joukov
Nikolai Joukov wrote: We have designed a new stackable file system that we called RAIF: Redundant Array of Independent Filesystems. Great! We have performed some benchmarking on a 3GHz PC with 2GB of RAM and U320 SCSI disks. Compared to the Linux RAID driver, RAIF has overheads of

Re: [ANNOUNCE] RAIF: Redundant Array of Independent Filesystems

2006-12-14 Thread Charles Manning
On Friday 15 December 2006 10:01, Nikolai Joukov wrote: Nikolai Joukov wrote: We have designed a new stackable file system that we called RAIF: Redundant Array of Independent Filesystems. Great! Yes, definitely... I see the major benefit being in the mobile, industrial and embedded

Re: [ANNOUNCE] RAIF: Redundant Array of Independent Filesystems

2006-12-14 Thread berk walker
Nikolai Joukov wrote: http://www.fsl.cs.sunysb.edu/docs/joukov-phdthesis/thesis.pdf Figures 9.7 and 9.8 also show profiles of the Linux RAID5 and RAIF5 operation under the same Postmark workload. Nikolai. - Nikolai Joukov, Ph.D. Filesystems and Storage Laboratory Stony

Re: [ANNOUNCE] RAIF: Redundant Array of Independent Filesystems

2006-12-14 Thread Nikolai Joukov
We started the project in April 2004. Right now I am using it as my /home/kolya file system at home. We believe that at this stage RAIF is mature enough for others to try it out. The code is available at: ftp://ftp.fsl.cs.sunysb.edu/pub/raif/ The code requires no kernel

Re: [ANNOUNCE] RAIF: Redundant Array of Independent Filesystems

2006-12-14 Thread Nikolai Joukov
Well, Congratulations, Doctor!! [Must be nice to be exiled to Stony Brook!! Oh, well, not I] Long Island is a very nice place with lots of vineries and perfect sand beaches - don't envy :-) Here's hoping that source exists, and that it is available for us. I guess, you are subscribed to

[RFC: 2.6 patch] simplify drivers/md/md.c:update_size()

2006-12-14 Thread Adrian Bunk
While looking at commit 8ddeeae51f2f197b4fafcba117ee8191b49d843e, I got the impression that this commit couldn't fix anything, since the size variable can't be changed before fit gets used. Is there any big thinko, or is the patch below that slightly simplifies update_size() semantically