IT Answers » Storage Area Networks

Storage Area Network Certification

Rick Martinez — Mon, 07 Feb 2011 17:46:57 +0000

is there a certification for SAN admin? I am a beginner and want to be a SAN admin where do i start?

Storage Area Network Configuration IOPS

Rick Martinez — Thu, 13 Jan 2011 23:10:50 +0000

I have a SAN with a RAID 10 (16 Drives) and a stripe size of 512. I want to align the disks for better SQL Server performance, the problem is that the OS is already installed on a non-aligned drive and SQL Server is running in production using non-aligned drives. My current 8 drives starting partition offset is 32256 and the file allocation unit size is 4096. IOPS = 750 MB/sec = 13 Latency = 10ms Disk Queue Length = 7 Block Size = 20KB 1.Can I just align the disks where the SQL Server database files live? 2.Aligning only the drives where the SQL Server database files live would that create a bigger block size in IOPS? 3.Do I have to also align the drive where the OS lives? 4.Maybe the main question is what controls the block size that gets sent to the SAN?

Stonefly optisan hanging

ITKE — Thu, 03 Jun 2010 14:16:34 +0000

Whenever I give a disk rescan, the server mysteriously gets hung. the system log throws the following error – “A connection to the target was lost, but Initiator successfully reconnected to the target. Dump data contains the target name.”

Storage : Stonefly optisan
Host : Windows 2003

How could I expand the volumes and RAID groups to RAID5(6+1)?

Mohamed1983 — Mon, 17 May 2010 09:34:12 +0000

The case is the celerra is captive, that means no navisphere.
We have two RAID Groups (4+1) and one Hot Spare.
How could I expand the volumes and RAID groups
to RAID5(6+1)

Storage market for DHS, Gov and DOD

Sevatec — Mon, 19 Apr 2010 18:33:17 +0000

Can you approximate how much share each of these storage companies ((e.g., NetApp, IBM, Sun, HP, EMC, etc) had in terms of military/ DHS/ government spend?

Can you install disks from an HDS 9910 into an HDS 9960?

SearchStorageATE — Wed, 18 Nov 2009 17:38:44 +0000

We have two unsupported storage-area networks (SANs) – one Hitachi Data Systems (HDS) 9910 and one HDS 9960. They are both left over from a SAN upgrade to NSC55, but we are using the old 9910 and 9960 for our test rigs until they break down and stop working. The 9910 is fully populated with 72GB disks but the newer 9960 has only half of its disk trays populated with 72GB disks.

Lower-end SAN products

JennyMack — Mon, 10 Aug 2009 19:14:38 +0000

Do you use any lower-end SAN products (EqualLogic, EMC, LeftHand Networks, Compellent Technologies, etc.) in your setup? If so, what do you use?

SAN material

Sam339 — Mon, 15 Jun 2009 21:17:28 +0000

From where should I start to master the concepts of SAN-storage area networks? Do we have a proper sequence, like where to start and carry on?

How to set up a disaster recovery (DR) VLAN to replicate data

NetworkingATE — Wed, 25 Mar 2009 15:32:24 +0000

I am new to disaster recovery (DR) and IT management. I have a production site with Cisco switches, and I’m backing up data to a storage area network (SAN). I have a GB link to a remote office and would like to replicate data to another SAN at the remote location. How do I set up a DR virtual LAN (VLAN) at the production site to replicate and switch over users in the event of a disaster?

Setting up a new 100GB storage system

SB — Tue, 19 Aug 2008 12:45:29 +0000

I am new to storage systems, currently gathering information on setting up a storage systems. I know the concepts but am unable to relate how will a storage system be setup based on Allocation, zoning, masking and mapping. Please help.