Re: fast raid0, slow raid1 (read) with same disks

1999-12-20 Thread Mika Kuoppala
On Sat, 18 Dec 1999, Steffen Ullrich wrote: > Hi, > The problem: > using raid0 gives me a read/write performance of 20..23MByte/s, using > raid1 (reading) gives only 9MByte/s (hdparm). Checking with dd to > read/write a 200MByte file it shows that raid1 reading is only as fast > as raid1 writin

fast raid0, slow raid1 (read) with same disks

1999-12-17 Thread Steffen Ullrich
Hi, I'm using 2.2.14pre12 with the unified IDE driver (to get UDMA on PIIX) and with raidtools and raid from 19990824 (the newest I've found). Mainboard is an older LX based from Gigabyte with on board SCSI, Processor PII233, RAM 64MByte. Primary harddisk an SCSI IBM, then I added two new Maxtor