Re: Adding Reed-Solomon Personality to MD, need help/advice

2006-01-08 Thread Bill Davidsen
Bailey, Scott wrote: Interestingly, I was just browsing this paper http://www.cs.utk.edu/%7Eplank/plank/papers/CS-05-569.html which appears to be quite on-topic for this discussion. I admit my eyes glaze over during intensive math discussions but it appears tuned RS might not be as horrible as

Re: Raid sync observations

2006-01-08 Thread Bill Davidsen
Gordon Henderson wrote: On Wed, 21 Dec 2005, Sebastian Kuzminsky wrote: But how does the performance for read and write compare? Good question! I'll post some performance numbers of the RAID-6 configuration when I have it up and running. Post your hardware config too if you

Re: more info on the hang with 2.6.15-rc5

2006-01-08 Thread Bill Davidsen
Sebastian Kuzminsky wrote: Now it works, but I dont trust it one bit. I had been seeing almost immediate, perfectly repeatable hard lockups in 2.6.15-rc5 and 2.6.15-rc5-mm3, when using sata_mv, RAID, and LVM together. Nothing in the syslog or on the console, and the system is totally

Re: mdadm-2.2 SEGFAULT: mdadm --assemble --scan

2006-01-08 Thread Bill Davidsen
Andreas Haumer wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi! Andre Noll schrieb: sorry if this is already known/fixed: Assemble() is called from mdadm.c with the update argument equal to NULL: Assemble(ss, array_list-devname, mdfd, array_list, configfile,

Re: more info on the hang with 2.6.15-rc5

2006-01-08 Thread Sebastian Kuzminsky
Bill Davidsen [EMAIL PROTECTED] wrote: Sebastian Kuzminsky wrote: Now it works, but I dont trust it one bit. I had been seeing almost immediate, perfectly repeatable hard lockups in 2.6.15-rc5 and 2.6.15-rc5-mm3, when using sata_mv, RAID, and LVM together. Nothing in the syslog or on the