How do I find out the number of disks I have on my linux system?
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There will be variations between various linux platforms with regard to looking for information.
fdisk is found on all the common linux systems, so the easiest way is:
# fdisk -l Disk /dev/sda: 72.9 GB, 72999763968 bytes 255 heads, 63 sectors/track, 8875 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 1 1306 10490413+ 83 Linux /dev/sda2 1307 2612 10490445 83 Linux /dev/sda3 2613 3918 10490445 83 Linux Disk /dev/sdb: 72.9 GB, 72999763968 bytes 255 heads, 63 sectors/track, 8875 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 13 104391 83 Linux /dev/sdb2 14 2624 20972857+ 82 Linux swap /dev/sdb3 2625 8874 50203125 8e Linux LVM
To find out the number of disks you have on the linux SuSE linux system you do the following:
Here you can see two disks /dev/sda & /dev/sda, and the their partition information.
On SuSE linux, you can also do the following:
# cd /var/log # grep SCSI boot.msg <5>SCSI subsystem initialized <5> Type: Direct-Access ANSI SCSI revision: 02 <5>SCSI device sda: 142577664 512-byte hdwr sectors (73000 MB) <5>SCSI device sda: drive cache: write through <5> Type: Direct-Access ANSI SCSI revision: 02 <5>SCSI device sdb: 142577664 512-byte hdwr sectors (73000 MB) <5>SCSI device sdb: drive cache: write through
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