0
votes
1answer
143 views

Dell PowerEdge R720 - Corrupted RAID

Apologies in advance for the lengthy question. We have a Dell PowerEdge R720 server with: 2 x 136GB SAS drives in RAID 1 for the OS (Ubuntu Server 12.04) 6 x 3TB SATA drives in RAID 5 for data A ...
-2
votes
1answer
50 views

Preparing for RAID5 failure [closed]

I've got an Ubuntu system with a bunch of hard disks in it acting as my home router, DHCP server, file server, etc. Twice in the past 24 hours it has suddenly decided to set the root filesystem to ...
0
votes
1answer
178 views

Will configuring a server with RAID 5 and (2*500gb) + (2*1TB) work?

I'm currently setting up a DELL server, which came with 2*500gb disk drives but is configured in RAID 1. I want to increase the total capacity of the disk storage to at least 1TB. Now with it being ...
-1
votes
3answers
264 views

Raid 0, Raid 1, Raid 5, Raid6, Raid 10 Read/Write performance? [duplicate]

Assume a single disk has a baseline of 1W & 1R performance, how does the different RAID configurations behave? My initial guess: Raid 0: 2W 2R Raid 1: 1W 2R Raid 5: ? ? Raid 6: ? ? Raid 10: ...
0
votes
3answers
160 views

Can I remove and test hard drive from Raid5 controller without rebuilding?

I have a new PowerEdge T320: Intel Xeon E5-1410 @ 2.8 GHz 16GB Windows Server 2008 r2 configured as Domain Controller Dell PERC S110 Software Raid 4x 7200 rpm 1TB drives configured in Raid5 I have ...
1
vote
1answer
307 views

Failing disks in RAID array - strategy suggestions required

I have a linux based software RAID 5 array. SMART has just started to send me emails complaining that one of the 5 disks has a Current Pending Sector Count of 9 and also an Offline Uncorrectable Count ...
3
votes
1answer
363 views

RAID-5 or RAID-6 - is RAID-5 really that bad? [duplicate]

Possible Duplicate: Which is better: RAID5 + 1 Hotspare / RAID6? I need to decide myself between RAID5 and RAID6. The servers have a hardware-RAID controller and 6 drives each. The ...
1
vote
1answer
261 views

Completely replacing (upgrading) a RAID 5 array of disks on an ESXi server

I have a development server that runs several VM on ESXi 5. It has an array of disks in the RAID 5 configuration where all of the disks are currently the same size. I would like to expand storage on ...
0
votes
1answer
131 views

RAID5 and different sizes of HDDs

Today I set up my first RAID ever. I decided to use RAID5, because I want as much space as possible, but I'm to afraid to use RAID0 because of possible data loss. I have 4 0,5TB drives and in RAID5 I ...
0
votes
1answer
357 views

How does RHEL alert a user about the failure of a hard drive in a RAID configuration?

I have, for better or worse, been put in charge of a big-ass server running RHEL6. It has six 1.5 TB drives in a RAID5 configuration. I understand the theoretical concepts behind RAID, and I access ...
2
votes
1answer
182 views

How to identify which hdd to be replaced in RAID

Our RAID5 (using Adaptec 3085) stopped working because one of the hdd is broken. How can I identify which one it is?
1
vote
2answers
133 views

NAS Hard drive configuration advice?

Just got a 4 bay NAS. I want to set it up as optimal as possible. I was thinking of getting 3 x 1TB hard drives and setting up as RAID 5. The disk usage will probably be around 1TB max but there is ...
5
votes
3answers
2k views

Is it safe to transfer RAID 5 disks from one server to another?

I have (what I assume) will be a relatively simple question. I have an old file server that I've decommissioned and replaced. I would like to re-use the hardware from the old file server at our ...
4
votes
4answers
229 views

Is it safe to mark a disk ok, in a degraded raid 5 array?

Intel Matrix Storage Console 8.9 showed a degraded array with one disk failure. Yet it offers the option to mark the disk as ok and rebuild the array? When would it be appropriate to do this? Does it ...
0
votes
2answers
187 views

Increasing capacity of RAID5 array [closed]

Assume that I built an 2TB RAID5 array and its running and some data is stored on it. Now I need to increase its size to 5TB. Can I increase capacity (By adding extra drives)? How? If Yes is it ...
1
vote
5answers
6k views

Replacing a dead hard drive in RAID 5 with a different type

One of the drives failed in my server configured with RAID 5, and I can't find a exact replacement. From my understanding, RAID 5 supports drives with different sizes. Is this safe? Any ...
3
votes
4answers
1k views

Can I use 2x 1TB 64MB Cache and 1x 1TB 32MB Cache in a RAID 5 setup?

I've been told the drives have to be identical for RAID 1, but when searching for additional drives in local stores to match: WD 1TB Caviar Black 7200rpm SATAII w/ 32MB Cache They say they don't ...
0
votes
1answer
993 views

Understanding blinking LED of Hard disk SATA configured in Raid 5

on a HP Proliant ML 350 G4p are installed and configured 4 hard disk SATA in RAID 5 mode. Two of the four hard disk have green LED blinking irregullary, one off and another green LED ON without ...
5
votes
4answers
446 views

mdadm: Replacing array with entirely new drives

I have a server with three 500GB drives, with most of my data in a RAID5 configuration spanning the three of them. I just purchased and installed four 1TB drives, and the intention is to move off of ...
0
votes
2answers
1k views

Software RAID 5 with different sized hard drives

Is it possible to use Linux software raid with different sized hard drives? What will happen? Related
5
votes
3answers
3k views

RAID 5 with big SATA disks. Do or don't?

Is it sane to build a machine with RAID 5 expecting to hold around 5 Tb (and able to grow) with 1.5 or 2 Tb SATA II disks? It will be used as audio and documents storage. I already have chosen a ...
2
votes
1answer
957 views

Does windows support hard drives larger than 2tb?

I have 6 x 500Gb drives formatted in raid 5. I have installed Windows Server 2003 R2 on 20Gb of this and want to format the rest as a backup drive (2.2Tb) is this possible? I have found the following ...
3
votes
8answers
932 views

Which is more standard in large enterprises: RAID5 or RAID10?

Which is more standard in large enterprises: RAID5 or RAID10?