[ale] Compaq raid disk. How do I format?

[Yu, Jerry]

sounds like hardware-based RAID. under linux, /dev/ida/c0d2 is just another
hard drive. so 'fdisk /dev/ida/c0d2' then 'mke2fs -j /dev/ida/c0d2p?' shall
do the job.

To verify the RAID set up, you may need to run the RAID configuration tool
in Compaq's SmartStart CD (boot from it). Therein you can view the mapping
between the logical/virtual RAID drive and the real physical drives.

# -----Original Message-----
# From: ale-bounces at ale.org [mailto:ale-bounces at ale.org]On Behalf Of Jim
# Lynch
# Sent: Monday, October 11, 2004 3:54 PM
# To: Atlanta Linux Enthusiasts
# Subject: [ale] Compaq raid disk. How do I format?
# 
# 
# I've have an old compaq that a Windows tech added some disks 
# to but had 
# no idea what to do to make it work on Linux.  From the dmesg 
# listing I 
# found:
# 
# Compaq SMART2 Driver (v 2.4.5)
# Found 1 controller(s)
# cpqarray: Finding drives on ida0 (SMART-2/P)
# cpqarray ida/c0d0: blksz=512 nr_blks=8380320
# cpqarray ida/c0d1: blksz=512 nr_blks=16768800
# cpqarray ida/c0d2: blksz=512 nr_blks=17764320
# 
# It looks like he added ida/c0d2 since I have the other two drives 
# mentioned in the fstab file.  When I tried to look at one of the 
# existing drives with fdisk I found:
# Disk /dev/ida/c0d1: 1 heads, 16768800 sectors, 1 cylinders
# Units = cylinders of 16768800 * 512 bytes
# 
#          Device Boot    Start       End    Blocks   Id  System
# /dev/ida/c0d1p1   *         1         1   2044064   82  Linux swap
# Partition 1 has different physical/logical beginnings (non-Linux?):
#      phys=(0, 1, 1) logical=(0, 0, 33)
# Partition 1 has different physical/logical endings:
#      phys=(500, 254, 32) logical=(0, 0, 4088160)
# Partition 1 does not end on cylinder boundary:
#      phys=(500, 254, 32) should be (500, 0, 16768800)
# /dev/ida/c0d1p2             1         1    391680   83  Linux
# Partition 2 has different physical/logical beginnings (non-Linux?):
#      phys=(501, 0, 1) logical=(0, 0, 4088161)
# Partition 2 has different physical/logical endings:
#      phys=(596, 254, 32) logical=(0, 0, 4871520)
# Partition 2 does not end on cylinder boundary:
#      phys=(596, 254, 32) should be (596, 0, 16768800)
# /dev/ida/c0d1p3             1         1    261120   83  Linux
# Partition 3 has different physical/logical beginnings (non-Linux?):
#      phys=(597, 0, 1) logical=(0, 0, 4871521)
# Partition 3 has different physical/logical endings:
#      phys=(660, 254, 32) logical=(0, 0, 5393760)
# Partition 3 does not end on cylinder boundary:
#      phys=(660, 254, 32) should be (660, 0, 16768800)
# /dev/ida/c0d1p4             1         1   5687520    f  Win95 
# Ext'd (LBA)
# Partition 4 has different physical/logical beginnings (non-Linux?):
#      phys=(661, 0, 1) logical=(0, 0, 5393761)
# Partition 4 has different physical/logical endings:
#      phys=(1023, 254, 32) logical=(0, 0, 16768800)
# Partition 4 does not end on cylinder boundary:
#      phys=(1023, 254, 32) should be (1023, 0, 16768800)
# /dev/ida/c0d1p5             1         1   5687504   83  Linux
# 
# Which makes me a bit leary of using fdisk on these drives.  
# Most of that 
# output doesn't make sense to me.  Can anyone point me in the right 
# direction so I can learn how to format this new drive?  This 
# is a RH 7.2 
# system.  If I understand correctly this is a RAID system.  The new 
# drive  is really 2 9 Gb drives configured as a mirror, so I 
# was told.  
# Is there some other utility I need to use to make sense of the 
# partitioning of the existing drives?
# 
# Thanks,
# Jim.
# 
# 
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