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Old 10-26-2004, 11:24 AM   #1
andrew_aj1
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Redhat and Promise FastTrack 100 tx2


i have a promise fasttrack tx2 with 4 40gb hdd attached to it. i have all four drives set up in a stripe, but when i try to install linux it shows 4 seperate drives. how can i get the linux installation to see the drives as a stripe instead of 4 seperate hard drives?

Thanks,

Andrew
 
Old 10-26-2004, 01:40 PM   #2
Finlay
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you go to their website and download a driver, this link might take you to the page you need:
http://www.promise.com/support/downl...ry=driver&os=3
 
Old 10-27-2004, 09:49 PM   #3
hkb33
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Finlay's right....another "fake" raid controller...without the raid Promise driver the operating system is only going to see the drives individually. Also, be careful as to what kernels the driver supports...these binary drivers are only written for certain kernel revisions. Beware that if you update your kernel the raid driver may not work with the new kernel and your system may not boot up!!

To avoid this, just set up the 4 drives using Linux's software raid.
 
Old 10-27-2004, 10:04 PM   #4
andrew_aj1
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when i try to set it up as a software raid i can only use the raid 1 (mirrored). i wish to use the drives in a raid 0 (stripe). how can i do that?
 
Old 10-27-2004, 10:21 PM   #5
hkb33
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You should be able to set up software raid 0 in linux with the 4 drives.

If you are trying to set up the raid with Red Hat's software RAID, then this may help:

http://www.redhat.com/docs/manuals/e...ware-raid.html
 
Old 10-27-2004, 10:23 PM   #6
andrew_aj1
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this is what i found on that page you gave me:

If you are making a RAID partition of /boot, you must choose RAID level 1, and it must use one of the first two drives (IDE first, SCSI second). If you are not creating a RAID partition of /boot, and you are making a RAID partition of /, it must be RAID level 1 and it must use one of the first two drives (IDE first, SCSI second).


is there any way i can get around this where i can install / on a raid 0?

Andrew
 
Old 10-28-2004, 09:41 AM   #7
Finlay
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you should have /boot on a seperate partition, you can't stripe raid it, no reason to.
 
Old 10-28-2004, 09:54 AM   #8
andrew_aj1
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so i can take one of my hard disks and mount it as /boot and then take the other three in a raid 0 config and mount them as /? how big must teh /boot mount be?
 
Old 10-28-2004, 01:22 PM   #9
hkb33
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/boot needs to be a minimum of 100MB
 
Old 10-28-2004, 08:26 PM   #10
Finlay
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you don't need a seperate disk, the 'standard' install will have 3 partitions.

1. swap = 2xRAM size
2. /boot = 100mb (rarely need more than that)
3. / = rest of drive
Optional
4. /home (some people like this seperate for backup reasons)

For you i would do 1-3 and use the software raid on the #3 partition.
 
  


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