Re: performance limitations of linux raid

2000-04-25 Thread remo strotkamp
bug1 wrote: > > Clay Claiborne wrote: > > > > For what its worth, we recently built an 8 ide drive 280GB raid5 system. > > Benchmarking with HDBENCH we got 35.7MB/sec read and 29.87MB/sec write. With > > DBENCH and 1 client we got 44.5 MB/sec with 3 clients it dropped down to about > > 43MB/sec.

Re: runtime detection of new drive....

2000-02-09 Thread remo strotkamp
Hi again, as usual I forgot to mention sth:-( The raid consists entirely of ide drives remo

runtime detection of new drive....

2000-02-08 Thread remo strotkamp
Hi raiders, this might be a rather stupid question, but I just never came accross sth in that direction. If I plug in a new harddisk at runtime, how do I get linux to recognize that new drive Probably the things are rather easy if you replace an existing one with identical properties and pa

Re: rackmountable cases as well as RAID5 performance comparisson UDMA33 vs 66...

2000-01-24 Thread remo strotkamp
Hi raiders again, > I have been having these sorts of problems for a fair while, my opinon (and > thats all it is) is that raid cant handle much more than 40MB/s, > irespective of your setup, i think theres some other limiting factor > > Ive gotten ~35MB/s with 3 udma33 drives, each its own cha

rackmountable cases as well as RAID5 performance comparisson UDMA33 vs 66...

2000-01-23 Thread remo strotkamp
Hi raider out there, We have a fileserver with software RAID-5 here. It's a rackmountable case with 1 hardisk for the OS on one of the two onboard IDE controllers and 8 DNJA 20GB harddisk in CRU Dataport V cases connected to 4 Promise Ultra 66 cards (each has 2 buses). So we installed a RAID5 ov

raid-1 and raid-5 performance: odd

1999-11-28 Thread Remo Strotkamp
Hi there, first of all thanx for all the replies concerning my previous mail. second: hi jakob and here are the single mode bonnie results... I have done some basic benchmarking in single user mode, and got strange results: First of all the setup: I have a raid-1 partition of 64MB over all 8 di

Re: RAID and Ultra66

1999-11-26 Thread Remo Strotkamp
Hi there, we had the same idea here, and we used option number two... I would not consider my advice as guru-guidance and neither should you, just more some sort of moral support... :-) Just works fine, except some errors we get on some of the disks, while copying big amount of stuff (2gig in s

Re: Best way to set up swap for high availability?

1999-11-23 Thread Remo Strotkamp
Hi there, first of all, I am a raiding newbie as well, so this is not even my two cents. :-) David Cunningham wrote: > Hello all. I found this address in the Raidtools-0.90.2 (Alpha) package. > I'm not sure if this is a mailing list or not. If so, please copy answers > to these questions to m