Re: now on to tuning....

2005-03-09 Thread Nicola Fankhauser
hi peter [EMAIL PROTECTED] wrote: I have been lurking for a while I recently put together a raid 5 system (Asus K8NE SIL 3114/2.6.8.1 kernel) with 4 300GB SATA Seagate drives (a lot smaller than the bulk of what seems to be on this list!). Currently this is used for video and mp3 storage, being

Re: non-optimal RAID 5 performance with 8 drive array

2005-03-06 Thread Nicola Fankhauser
hi On Sun, 2005-03-06 at 15:25, Stephan van Hienen wrote: > which kernel are you using ? currently 2.6.8. > 2.4: > write 100MB/s > read 140MB/s > > 2.6 > write 100MB/s > read 280MB/s are you sure that 2.6 gives you better read performance than 2.4? it's been reported the other way 'round. r

Re: strangre drive behaviour.

2005-03-06 Thread Nicola Fankhauser
hi max On Sun, 2005-03-06 at 08:00, Max Waterman wrote: > It seems to work as a slave device, but not as a master. I have tried > many combinations of interfaces/cables/power/etc. just to check basic things: what are your drives' jumper settings? if all your drives are set to "cable select", and

Re: dd version I used is 5.2.1, but...

2005-03-02 Thread Nicola Fankhauser
hi Jurriaan wrote: - please group messages in the same thread, thank you. sorry for that. - if there is no answer within a day, wait some more - not everybody is constantly reading this list, you know. thanks for the tip. - wrt your question: how are those raid-controllers on your motherboard? ac

dd version I used is 5.2.1, but...

2005-03-01 Thread Nicola Fankhauser
hi the version of dd I used is 5.2.1 (debian testing), but does anybody have an idea regarding my performance question? regards nicola - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.o

non-optimal RAID 5 performance with 8 drive array

2005-03-01 Thread Nicola Fankhauser
Hi all I have a RAID 5 array consisting of 8 300GB Maxtor SATA drives (6B300S0), hooked up to a Asus A8N-SLI deluxe motherboard with 4 NForce4 SATA ports and 4 SiI 3114 ports. see [3] for a description of what I did and more details. each single disk in the array gives a read performance (tested

Re: Joys of spare disks!

2005-02-28 Thread Nicola Fankhauser
hi robin Robin Bowes wrote: I bought 9 (8+1 for RAID5) 6B300S0 300GB Maxtor DM10 a month ago and they seem to run fine - though I want to test them with powermax this week to see if there could be problems. Based on my experiences, I would strongly recommend running them 7+1+1, i.e. configuring

Re: Joys of spare disks!

2005-02-28 Thread Nicola Fankhauser
hi robin nice to meet you here again - I've been subscribed to this list for 1.5 hour today when your post made it into my inbox! :) Robin Bowes wrote: I've had loads of problems with MaxLine II 250GB SATA drives and wouldn't buy them again. I bought 9 (8+1 for RAID5) 6B300S0 300GB Maxtor DM10