Migration of Oracle GI quorum disk to another diskgroup

Byetzion 28/06/201519/10/2019

When installing Oracle RAC (or in its more modern name – GI) version 11.2.0.1 and above, you can use Oracle ASM DiskGroup as your CRS+Voting file location.

It is fairly simple changing the disk membership in Oracle ASM DiskGroup, however, when you face some unknown bugs which prevent you from doing just that, or when you are required to modify the ASM DiskGroup on which the CRS+Voting files are placed, the article below is the one for you. You would have to remember, in addition, the ASM spfile.

So, as a reminder (which is one of the purposes of this blog), here’s a link to a very extensive article about how to migrate the CRS, Vote and spfile from one ASM DiskGroup to another: Migrate OCR to another DiskGroup

Disk Storage

Fibre Cloud – Multi SAN Switch Configuration

Byetzion 18/04/200620/11/2018

I’m not going to disclose now the method to do so, but I want to show off, so here’s a (real) screen-shot taken from my Cisco Fabric Manager. I have three MDS 9212, two Brocade SilkWorm 2800 and one Brocade SilkWorm 2400. All later three are old and slow, which is why I’ve used the…

Disk Storage | Linux

Hot resize Multipath Disk – Linux

Byetzion 19/08/2011

This post is for the users of the great dm-multipath system in Linux, who encounter a major availability problem when attempting a resize of mpath devices (and their partitions), and find themselves scheduling a reboot. This documented is based on a document created by IBM called “Hot Resize Multipath Storage Volume on Linux with SVC”,…

Disk Storage | Linux

targetcli extend fileio backend

Byetzion 03/04/202003/04/2020

I am working on an article which will describe the procedures required to extend LUN on Linux storage clients, with and without use of multipath (device-mapper-multipath) and with and without partitioning (I tend to partition storage disks, even when this is not exactly required). Also – it will deal with migration from MBR to GPT…

bash | Disk Storage

NetApp SnapMirror monitor script

Byetzion 13/12/2009

I have had some work done lately with NetApp SnapMirror. I have snapped-mirrored some volumes and qtrees and I wanted to monitor their use and behavior over the line. As you can expect, site-to-site replication of data is a fragile thing, especially when done on the level of the storage device, which is agnostic to…

bash | Disk Storage | Scripting/Programming | Virtualization

XenServer – Map all VMs disks to Storage Repositories

Byetzion 10/11/201504/08/2020

Related posts: XenServer – Setting virtual disks names based on the VM names XenServer create snapshots for all machines Clone corrupted disk in XenServer Powered by YARPP.

Disk Storage

Compaq Proliant 360/370/380 G1 cpqarray problems with Ubuntu

Byetzion 24/03/200720/11/2018

Or, for that matter, any other Linux distribution that: a. uses kernel 2.6.x up to 2.6.18 b. Does not dynamically create the initrd as part of the installation Ubuntu, for that matter, is an example of not doing both. While it does create the initrd, it doesn’t create it dynamically per the output of ‘lspci‘,…

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