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Full Discussion: Hardware RAID using three disks
Operating Systems Solaris Hardware RAID using three disks Post 302931588 by jegaraman on Wednesday 14th of January 2015 02:58:45 AM
Old 01-14-2015
Hardware RAID using three disks
Dear All ,

Pl find the below command ,
Code:
# raidctl -l
Controller: 1
        Volume:c1t0d0
        Disk: 0.0.0
        Disk: 0.1.0
        Disk: 0.3.0
# 
 raidctl -l c1t0d0
Volume                  Size    Stripe  Status   Cache  RAID
        Sub                     Size                    Level
                Disk
----------------------------------------------------------------
c1t0d0                  136.6G  N/A     OPTIMAL  OFF    RAID1
                0.0.0   136.6G          GOOD
                0.1.0   136.6G          GOOD
#

 format
Searching for disks...done


AVAILABLE DISK SELECTIONS:
       0. c1t0d0 <LSILOGIC-LogicalVolume-3000 cyl 65533 alt 2 hd 16 sec 273>
          /pci@0/pci@0/pci@2/scsi@0/sd@0,0
       1. c1t3d0 <SUN600G cyl 64986 alt 2 hd 27 sec 668>
          /pci@0/pci@0/pci@2/scsi@0/sd@3,0
Specify disk (enter its number): ^D

In the above output , i want to know how this RAID 1 volume has been created , whether it is created of two disks or three disks as because i find in "raidctl -l " command there are three disks present .

And also i want to do the patching on this server , any one tell me how to split this raid 1 volume and do the activity.

Rgds
Mj
 

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LEARN ABOUT NETBSD

mfi

MFI(4)							   BSD Kernel Interfaces Manual 						    MFI(4)

NAME

     mfi -- LSI Logic & Dell MegaRAID SAS RAID controller

SYNOPSIS

     mfi* at pci? dev ? function ?

DESCRIPTION

     The mfi driver provides support for the MegaRAID SAS family of RAID controllers, including:

	   -   Dell PERC 5/e, PERC 5/i, PERC 6/e, PERC 6/i
	   -   Intel RAID Controller SRCSAS18E, SRCSAS144E
	   -   LSI Logic MegaRAID SAS 8208ELP, MegaRAID SAS 8208XLP, MegaRAID SAS 8300XLP, MegaRAID SAS 8308ELP, MegaRAID SAS 8344ELP, MegaRAID
	       SAS 8408E, MegaRAID SAS 8480E, MegaRAID SAS 8708ELP, MegaRAID SAS 8888ELP, MegaRAID SAS 8880EM2, MegaRAID SAS 9260-8i
	   -   IBM ServeRAID M1015, ServeRAID M5014

     These controllers support RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50 and RAID 60 using either SAS or SATA II drives.

     Although the controllers are actual RAID controllers, the driver makes them look just like SCSI controllers.  All RAID configuration is done
     through the controllers' BIOSes.

     mfi supports monitoring of the logical disks in the controller through the bioctl(8) and envstat(8) commands.

EVENTS

     The mfi driver is able to send events to powerd(8) if a logical drive in the controller is not online.  The state-changed event will be sent
     to the /etc/powerd/scripts/sensor_drive script when such condition happens.

SEE ALSO

     intro(4), pci(4), scsi(4), sd(4), bioctl(8), envstat(8), powerd(8)

HISTORY

     The mfi driver first appeared in NetBSD 4.0.

BSD
								  March 22, 2012							       BSD
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