Sponsored Content
Operating Systems Solaris Hardware RAID using three disks Post 302931602 by hicksd8 on Wednesday 14th of January 2015 06:18:20 AM
Old 01-14-2015
The raid1 mirror has 2 disks; c1t0d0 and c1t1d0

Let me state a few facts just to ensure that you've got the principles here. Post back any questions on these points. It's important that you understand this.

1. Your box has an integrated RAID controller (but regard it as a separate card).

2. You interrogate/configure this controller using the raidctl command which can see all disks; mirrored or not.

3. If you create a mirror (using raidctl), one of the disks disappears as far as the O/S is concerned. The RAID controller simply presents one disk to the O/S and takes care of the mirror copy to the other disk. Therefore, the other (hidden) disk is NOT visible to the format command (unless you unmirror it).

Therefore what you posted tells me that there are 2 disks in the mirror. The OPTIMAL means that it is healthy.

There is a third disk in the system (c1t3d0) which is not mirrored and just simply passed through to the O/S.

Therefore the format command sees c1t0d0 (the RAID1 mirror; really 2 disks) and the third disk (c1t3d0).

Sorry if you already knew that but just to be sure that you know what you're looking at.

Run

Code:
# mount

to see if any slice of c1t3d0 is in use.

You can also select this disk in the format command and print it's vtoc to see if it's even sliced (partitioned). Maybe there's nothing on this disk.

Why do you think that you should contemplate breaking the mirror in order to patch? Just take a backup (perhaps to c1t3d0 if it's not in use).

There's plenty of knowledge and help available on this forum. Just post your questions.

Hope that helps.
 

9 More Discussions You Might Find Interesting

1. Solaris

Hardware RAID

I don't understood why on SPARC-Platforms have not present RAID-Controller ? Sorry for my bad english, but it's crazy always setup software RAID !!! I whanna Hardware RAID and when i can find solution ? (7 Replies)
Discussion started by: jess_t03
7 Replies

2. Red Hat

IBM RAID disks

We have a Red Hat linux server running on IBM x445 hardware. There are external disks in an IBM EXP300 disk enclosure. The system is running RAID 5. One of the four IBM disks (73.4 GB 10k FRU 06P5760) has become faulty. The system is still up and running OK because of the RAID. In that same EXP300... (3 Replies)
Discussion started by: pdudley
3 Replies

3. Solaris

Move disks to different StorEdge, keeping RAID

Hi. I need to move a 5 disk RAID5 array from a SE3310 box to a different SE3310 array. After installing the disks in the "new" StorEdge device, I "would like" ;) to be able have access to the data which is on the RAID. Essentially, the quesion is, how can this be done? :confused: I checked... (5 Replies)
Discussion started by: alexs77
5 Replies

4. UNIX for Dummies Questions & Answers

RAID software vs hardware RAID

Hi Can someone tell me what are the differences between software and hardware raid ? thx for help. (2 Replies)
Discussion started by: presul
2 Replies

5. Solaris

Solaris not recognizing RAID 5 disks

I've just installed Sol 10 Update 9 on a Sun 4140 server and have a RAID 1 configuration (2 136 Gb drives) for the OS and have created a RAID 5 array (6 136 GB) drives. When i log into the system I am unable to see the RAID 5 disks at all. I've tried using the devfsadm command but no luck and... (9 Replies)
Discussion started by: goose25
9 Replies

6. AIX

SCSI PCI - X RAID Controller card RAID 5 AIX Disks disappeared

Hello, I have a scsi pci x raid controller card on which I had created a disk array of 3 disks when I type lspv ; I used to see 3 physical disks ( two local disks and one raid 5 disk ) suddenly the raid 5 disk array disappeared ; so the hardware engineer thought the problem was with SCSI... (0 Replies)
Discussion started by: filosophizer
0 Replies

7. Solaris

Software RAID on top of Hardware RAID

Server Model: T5120 with 146G x4 disks. OS: Solaris 10 - installed on c1t0d0. Plan to use software raid (veritas volume mgr) on c1t2d0 disk. After format and label the disk, still not able to detect using vxdiskadm. Question: Should I remove the hardware raid on c1t2d0 first? My... (4 Replies)
Discussion started by: KhawHL
4 Replies

8. Solaris

Solaris 10 Installation - Disks missing, and Raid

Hey everyone. First, let me start by saying I'm primarily focused on linux boxes, and just happened to get pulled into building two T5220's. I'm not super educated on sun boxes. Both T5220's have 8 146GB 15k SAS drives. Inside the service processor, I can run SHOW /SYS/HDD{0-7} and they all come... (2 Replies)
Discussion started by: msarro
2 Replies

9. Solaris

Hardware raid patching

Dear All , we have hardware raid 1 implemented on Solaris Disks. We need to patch the Servers. Kindly let me know how to patch hardware raid implemented Servers. Thanks... Rj (7 Replies)
Discussion started by: jegaraman
7 Replies
raidctl(1M)						  System Administration Commands					       raidctl(1M)

NAME
raidctl - RAID hardware utility SYNOPSIS
raidctl -c disk1 disk2 raidctl -d disk1 raidctl [-f] -F filename controller... raidctl -l [controller...] DESCRIPTION
The raidctl utility creates, deletes, or displays RAID volumes of the LSI1030 HW Raid controllers that include RAID support. The utility also updates firmware/fcode/BIOS for both RAID and non-RAID controllers. The raidctl utility requires privileges that are controlled by the underlying file-system permissions. Only privileged users can manipulate the RAID system configuration. If a non-privileged user attempts to create or delete a RAID volume, the command fails with EPERM. Without options, raidctl displays the current RAID configuration on all exisiting controllers. OPTIONS
The following options are supported: -c disk1 disk2 (for on board) Create a mirror using disk1 and disk2. Replace the contents of disk2 with the contents of disk1. Specify disk1 and disk2 in canonical form, for example, c0t0d0. When you create a a RAID volume, the RAID volume assumes the identity of the first target in the disk pair (disk1). The second target (disk2) disappears from the system. Therefore, the RAID volume appears as one disk. To have a successful RAID creation, there must not already be a RAID configuration present on the specified controller. Additionally, the secondary disk must not be mounted, as it has all its data erased and replaced with the primary disk's data. -d disk1 (for on board) Delete the RAID volume specified as disk1. Specify disk1 in canonical form, for example, c0t0d0. -f (for HBA) Force an update. Do not prompt. -F filename controller (for HBA) Update the firmware running on the specified controller (controller). -l [controller ...] (for on board) List the system's RAID configuration. If controller is specified, list RAID configurations for controller. Output from the -l lists the following information: RAID Volume Displays logical RAID volume name. RAID Status Displays RAID status as either RESYNCING (disks are syncing), DEGRADED RAID is operating with reduced functionality), OK (operating optimally), or FAILED (non-functional). RAID Disk Displays RAID disk name. Disk Status Displays disk status as either OK or FAILED. EXAMPLES
Example 1: Creating the RAID Configuration The following command creates the RAID configuration: # raidctl -c c0t0d0 c0t1d0 RAID Volume 'c0t0d0' created Example 2: Displaying the RAID Configuration The following command displays the RAID configuration: # raidctl RAID RAID RAID Disk Volume Status Disk Status ---------------------------------------- c0t0d0 RESYNCING c0t0d0 OK c0t1d0 OK Example 3: Deleting the RAID Configuration The following command deletes the RAID configuration: # raidctl -d c0t0d0 RAID Volume 'c0t0d0' deleted Example 4: Updating Flash Images on the Controller The following command updates flash images on the controller: # raidctl -F lsi1030.fw 0 Update flash image on controller 0? (y/N): y Flash updated successfully EXIT STATUS
The following exit values are returned: 0 Successful completion. 1 Invalid command line input. 2 Request operation failed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) System Administration Guide: Basic Administration SunOS 5.10 17 Aug 2004 raidctl(1M)
All times are GMT -4. The time now is 08:46 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy