0
votes
1answer
55 views

Issue rebuilding raid5 with 3ware controller

I have a degraded array with 8 disks. Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy ------------------------------------------------------------------------------ u0 ...
2
votes
2answers
286 views

How to use SAS expanders with Adaptec 2405 Raid Card

I have a server with Adaptec 2405 RAID card. I have 4 hard drives attached to it. I want to add 4 more. Adaptec site says 2405 can handle up to 128 hard drives with SAS expanders. It's not clear to me ...
2
votes
0answers
109 views

HP DL380 G7 RAID controller detecting bays incorrectly - port or mobo?

I've been passed a DL380 G7 which appears to work fine (all usual checks come back OK, Linux boots OK, LV creation is OK and disk access is OK) -- except the left hand four bays connected to port 1 of ...
-2
votes
2answers
514 views

RHEL 6.0 enterprise intallation probelm on hp gen8 server [closed]

i am unable to install rhel 6 enterprise edition on hp dl380p gen8 server. with a p420i raid controller with 512 mb cache. whenever i boot from my media.. after asking for language and keyboard type.. ...
1
vote
1answer
171 views

SCSI controller vs RAID controller

I have a Poweredge server which has a Ultra 160 SCSI controller, I was wondering if this has the ability to set the drives as RAID1 or 5? Is a SCSI & RAID controller generally the same thing?
0
votes
1answer
204 views

Smart Array P212 Raid controller on SBS 2008 ProLiant G6

I had a mirrored array with 2 * 1TB drives. I have replaced both drives (one at a time and allowed it to rebuid) with 2 * 2TB drive. So I now have a capacity of 2TB rather than 1TB. However, the array ...
2
votes
2answers
474 views

Proliant ML350 G3 System board failure

My ProLiant ML350 G3 Tower server's system board has gone bad after it had an inch of its lower edge in rain water. I have a SCSI controller Smart Array 532 with six (36GBx3 and 146GBx3) under RAID5 ...
0
votes
4answers
374 views

How to remove raid 5 array of 5 SAS and use only use one SAS at a time without writing any thing to disc for recovery

I have HP server ML370 g5 with 8 SAS, c drive 1 72 gb raid 0, d drive 2 72 gb raid 0, f drive 5 146 gb raid 5. 2 of 5 sas drive has got bad sectors and raid 5 is showing status failed. now i want ...
0
votes
3answers
2k views

Dell SAS 5/ir - secondary disk update “data will be lost!” - will all data, or just secondary disk?

On a Dell SAS 5/ir RAID controller, I have a RAID 1 array which is Degraded. One drive has failed. Upon replacing this drive the controller doesn't automatically resync the array. There's an ...
2
votes
2answers
2k views

What is the SCSI RAID channels?

What is the SCSI RAID channels? I.e. what is the difference between, say, 1-channel RAID controller and 2-channel RAID controller? Is it for data throughput, number of RAID arrays I can create on ...
2
votes
1answer
233 views

Software Based RAID? Via OS or Controller?

So, I just discovered that the RAID controller within my Dell Precision 470 is software based. I never recognized until now that Adaptec CERC stood for "Cost Effective Raid Controller"... amazing. ...
9
votes
7answers
25k views

What is a (raid-controller-) BBU for?

I am wondering what's the purpose of a BBU. My first understanding was, that it enables the cache to write the data to the disc during a power failure. But some specifications say that a BBU can hold ...
1
vote
1answer
565 views

RAID Controller Acting Weird with a New Hard Drive

(Not sure on the model at the moment will update once I know) So we had a a RAID 5 that had two hard drives fail at the same time. Positions 0 and and 1 are labeled as "online". Positions 2 and 3 ...
0
votes
1answer
257 views

Can an IBM ServeRAID 4mx controller work on a non-IBM server?

I have some IBM ServeRAID 4mx controllers on some aging IBM x360 servers (Pentium III 1.5 ghz CPUs); I also have a SCSI disk array with two ports, which can be attached to those controllers; and I ...
3
votes
2answers
13k views

HP SmartArray 410i controller slow?

Have just had a new HP DL380 G6 server set up. This has a SmartArray P410i controller and seven 2.5" 146Gb SAS 10k RPM disks, configured as three RAID1 arrays and a floating hot spare. Problem: I ...
0
votes
4answers
794 views

Adaptec 2820SA RAID 5 Question

We have a Server in our office with an Adaptec 2820SA RAID contoller in it, and since the day we got it its been purely excellent. However, we recently wanted to increase the size of our storage ...