Re: Still problems with raid linear

1999-07-21 Thread Jens Schleusener
On Tue, 20 Jul 1999, Jens Schleusener wrote: Hi, sorry that I bother the experts. I am very new in the RAID business and tried to setup a large filesysten with three disks (2*18 GB + 1*9 GB SCSI, Adaptec 2940 AU) by using RAID linear. I used a fresh SuSE 6.1 distribution (kernel 2.2.5)

Re: Still problems with raid linear

1999-07-21 Thread Thomas Willert
On Wed, 21 Jul 1999, Jens Schleusener wrote: # mkraid /dev/md0 handling MD device /dev/md0 analyzing super-block disk 0: /dev/sdc1, 17920476kB, raid superblock at 17920384kB disk 1: /dev/sdd1, 17920476kB, raid superblock at 17920384kB disk 2: /dev/sde1, 8924076kB, raid superblock at

AW: more than 16 /dev/sdx ??

1999-07-21 Thread Schackel, Fa. Integrata, ZRZ DA
Hallo Marc, no I've not inreased the max num of disks (didn't even know). Do I have to rebuild the kernel? bye Bernhard Schackel, Fa. Integrata, ZRZ DA wrote: Hello, I've managed to make new SCSI devices (/dev/sdq + /dev/sdr) which are above the 16 preconfigured /dev's. (mknod)

Re: AW: more than 16 /dev/sdx ??

1999-07-21 Thread Fred Reimer
Yes. If you build RAID as a module then you won't have to reboot... On Wed, 21 Jul 1999, Schackel, Fa. Integrata, ZRZ DA wrote: Hallo Marc, no I've not inreased the max num of disks (didn't even know). Do I have to rebuild the kernel? bye Bernhard Schackel, Fa. Integrata, ZRZ DA

seeking advice for linux raid config

1999-07-21 Thread jmm
I'm trying to figure out a good set-up for a Linux machine (Netfinity 7000M10 or 8500M10, still deciding) for optimal sequential-block-write performance (block size can be changed arbitrarily). The machine will be hosting 240 SCSI drives (36.4GB each) (plus 1 or 2 to boot from). The drives will

Re: seeking advice for linux raid config

1999-07-21 Thread jmm
The Software RAID solution will give you all the flexibility you need. If you have already considered it, and discarded it as an option for some reason, I'd be grateful to know about that reason. The 16-scsi-drive limitation that existed (at least at one time). While the limit may be higher

Re: seeking advice for linux raid config

1999-07-21 Thread D. Lance Robinson
James, There are currently 128 possible SCSI disk device allocated in the device map--see linux/Documentation/devices.txt . Now, each of these supports partitions 1..15 (lower 4 bits) with 0 being the raw device, and the other bits for the base device are mapped into various places. There is a

Linear mode

1999-07-21 Thread Bob Tanner
Found part of my problem. The HOWTO says you have to do a mkraid on linear arrays, but the man pages say you do not have to do mkraid. So, I changed my defination from linear to RAID-0 and it works fine. So, how does one make a linear array? -- Bob Tanner [EMAIL PROTECTED] | Phone :

Re: seeking advice for linux raid config

1999-07-21 Thread Thomas Ko
Hi, there's another problem with linux that hasn't been mentioned at the list: with ext2 the maximum filesize is 2 GByte. Maybe there's a patch out there but i don't think so because it is a design limitation. But the linux people are working on a 64-bit journalling file system maybe called