Well, I'm using a third drive where redhat7.2 with 2.4.16 is installed to build a linux-of-my-own on the RAID 0 array(with the first partition as windows XP). Well... when booting on this "spare" drive, I noticed exactly the same thing than you: the first drive of the array (hde in my case) has some troubles that slows down the system in a terribly manner. You can verify it after somewhere in the /proc filesystem, you have a pdc20xxx file(probably a HTPxxx in your case) that releaved what you said, the first drive is not "optimised"(DMA is disabled for instance) but the second drive is ok. I'm not yet in Kernel Hacking to fix all of that, hopefully somebody with this power will hear our cries and tears. No worries, it's my home system... meant to suffer. ----- Original Message ----- From: "Miroslav BENES" <mbenes@xxxxxxxx> To: <ataraid-list@xxxxxxxxxx> Sent: Friday, December 14, 2001 7:07 AM Subject: Re: RAID 0 reports errors > > I have exactly the same problem with RAID 0 promise 20265. > > Booting with redhat on the "spare" drive takes for ever. > > Huh ! You have root filesystem on ATA disk array ? But this kernel driver is ony in > 0.0.1 version. > > > > I checked dmesg: it is saturated by those error messages(similar to the one > > below). > > Thi means not HW, but SW probems. > > > > > I did a bonnie++ benchmark--> I hardly get a 10MB sec in read block mode on > > the RAID 0 partition. > > I did a very simple "benchmark" : > # cat /dev/ataraid/d0 >/dev/null > > (whole 120 GB array had been copied into black hole). > > > a) With the "normal" setting (i.e. settings hd params made system, but one disk > reports errors and was not be set proiperly) this test not finished during 3 hours. > > > b) When I set up hd params of "first" disk in array manualy, the operation was done in > 54 minutes -> reading sped is about 36MiB per sec. This is not too much, because > this disk in single mode can read about 29 MiB/s. But speed of array is rather good. > > > > > Mirosav BENES > system administrator > TENEZ a.s. > Chotebor > Czech republic > www.tenez.cz > > > > > > _______________________________________________ > > Ataraid-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/ataraid-list ______________________________________________________________________________ ifrance.com, l'email gratuit le plus complet de l'Internet ! vos emails depuis un navigateur, en POP3, sur Minitel, sur le WAP... http://www.ifrance.com/_reloc/email.emailif
