2
votes
0answers
52 views

How is that possible that file was changed without date modification? [closed]

I'm using Blade Server with CentOS 6.5 (ext4) installed, disks combined in raid6, connected in a storage area network. Somehow some of my files become corrupted from time to time without updating the ...
1
vote
1answer
205 views

Clariion CX300: Removing system disks from a RAID group?

I have a raid group that includes every disk my DPE2. I want to remove the system disks (0-4) from this RAID group. From what I read I should i put them in their own RAID group and avoid storing ...
5
votes
1answer
162 views

RAID Recovery after Firmware issue

This may be a duplicate but I think the situation is different. We were having problems with a HP MSA2000 SAN, speaking to support they suggested that we upgraded the firmware to the latest version ...
1
vote
2answers
909 views

Equallogic partitioning: pools, allocations, etc

I have some new budget coming up to buy an Equallogic PS6110xv. This unit has 24x600G disks and I'm looking at different ways of setting it up. The two primary uses will be VMs and MySQL. MySQL: ...
4
votes
3answers
1k views

Sparing level on HP EVA 4000

One of the disks of our EVA4000 died today. This diskgroup (all volumes vraid5 with sparing level 1 and almost no space left for more volumes, 1TiB drives) is being rebuilt with "spare space" right ...
4
votes
1answer
806 views

What is the default RAID-50 stripe size on a Dell EqualLogic PS6510?

We have a Dell EqualLogic PS6510 RAID Array. I have full access to the web-based "PS Group Manager" app, as well as the "SAN Headquarters" app. I have hunted high and low, and searched Google for ...
1
vote
1answer
466 views

Encrypting iSCSI Volume attached to Windows Server using Truecrypt

I'm using a QNAP-439 Pro II SAN. Full disk encryption is currently enabled. But since you take a 80% performance hit by enabling encryption I'm thinking about disabling encryption on the SAN and ...
5
votes
2answers
2k views

Does adding more drives to a RAID 10 Array increase performance?

I'd like to know if I were to add additional drives to an existing Raid 10 if this would increase the speed of the entire array?
2
votes
2answers
194 views

Local attached storage versus NAS

I currently have 3 old NT File Servers that are about to die, which have no disk level redundancy. We're considering buying drives and attaching them to a newer server that would serve files, but I ...
3
votes
2answers
332 views

SAN replication

My company has only a single storage box (SuperMicro hardware + chassis with a LSI raid card and 12 SAS 7.2k drive) in its current setup. It runs on linux and we hook it up to our fileserver via ...
1
vote
1answer
297 views

Custom SAN with multiple servers using the same iSCSI targets

I'm trying to create my own SAN out of existing hardware. I have four identical NAS devices. Each one has four 1 TB drives that they do RAID-5 across. On each NAS I have created a 1 TB iSCSI share. ...
0
votes
1answer
735 views

Would FreeNAS with RAID-6/10/50 work well with VMWare ESXi?

I am considering expanding my single ESXi server set-up with a SAN and another ESXi server, because I am planning to update the Windows Server 2003 virtual machines to Windows Server 2008. The servers ...
2
votes
2answers
331 views

Need help with MS SQL SAN disk array provisioning

We have a HP MSA70 with 20x300gb 2,5" 10k disks allocated for our SQL2008 server. Our usage of the SQL server is: 50 concurrent users of our ERP system(Visma business) - 70/30 read/write. 2500 ...
1
vote
2answers
501 views

Will Software RAID And iSCSI Work For A SAN

I am looking for a SAN solution, but can't afford even entry level solutions. Basically, the SAN is for development and a proof of concept product. The performance doesn't have to be amazing, but ...
1
vote
7answers
3k views

Which SQL files benefit the most from RAID 10 vs RAID 5?

Assuming I can't put everything on RAID10, which parts of SQL (Data files, log files, TempDB, Backups, etc) benefit the most from being on RAID 10 instead of RAID5? Does it depend on the type of ...
1
vote
0answers
509 views

Replacing LeftHand SAN Hard Disk Outside of Warranty / Service Contract

I am working with 3 clusters of LefHand SAN iSCSI storage arrays. The modules are all older NSM 150s and NSM 160s (super micro server hardware, sata disks). The workload is low priority and all ...
9
votes
9answers
16k views

How many disks is too many in this RAID 5 configuration?

HP 2012i SAN, 7 disks in RAID 5 with 1 hot spare, took several days to expand the volume from 5 to 7 300GB SAS drives. Looking for suggestions about when and how I would determine that having 2 ...
0
votes
1answer
317 views

A metalun made of LUNs on two RAID groups

Does it make sense to have a metalun made of LUNs on two RAID groups, where 1 RG contains 5 disks and the other 9? Can the CX 700 use this config efficiently? Both RAID5. I guess not, but I am not ...
1
vote
2answers
280 views

Build my Own IP SAN with 2 server

I want to take 2 machine, put five disk on each, 10 disk total on 2 servers. I want to build a raid with 10 disk but between 2 server. Is it possible and wath software i need ? ...
1
vote
2answers
874 views

EMC CLARiiON - merge raid groups, retain LUN's

Not sure this is possible, but... Let's say you have two raid groups, each striped across 6 disks. Group 1 has 2 LUNs, Group 2 has two LUNs - is it possible to merge the raid groups (i.e. gain ...