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Re: internal 2 root disks on Linux

 
John Guster
Trusted Contributor

‎05-27-2009 07:02 AM

‎05-27-2009 07:02 AM

internal 2 root disks on Linux

Dell equipment normally shipped with 2 internal root disks. If the OS is Linux, how to identify the two root disks device files? Any suggestions?
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Ivan Ferreira
Honored Contributor

‎05-27-2009 07:38 AM

‎05-27-2009 07:38 AM

Re: internal 2 root disks on Linux

Can you explain a little more what you need to do? Do you need to identify which of the two disks is phisically the disk that holds the root file system?

What are the ouput of fdisk -l, vgdisplay and pvdisplay?
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
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Heironimus
Honored Contributor

‎05-27-2009 08:23 AM

‎05-27-2009 08:23 AM

Re: internal 2 root disks on Linux

Most of my Dell servers shipped with on-board PERC RAID controllers. Each configured RAID volume is presented as a single SCSI disk (/dev/sda, /dev/sdb, etc) and the only way to see individual disks inside the array is through Dell's diagnostic and management utilities.
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Steven E. Protter
Exalted Contributor

‎05-27-2009 11:47 AM

‎05-27-2009 11:47 AM

Re: internal 2 root disks on Linux

Shalom,

If the Dell server has an internal raid controller, then set up raid 1 mirroring.

This will present a single disk to the OS but provide for disk failure without the OS ever knowing the difference.

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Steven E Protter
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