RAID solution with hardware assistance. RAID parity calculations can be performed by either the main CPU, or by a separate processor on the RAID controller card.

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3
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3answers
1k views

Extend RAID 1 (HP SmartArray P410i) running Linux

I took over a fairly simple server setup with the following RAID 1 config running Ubuntu 11.10 (Kernel 3.0.0-12-server x86_64): => ctrl all show config Smart Array P410i in Slot 0 (Embedded) ...
0
votes
1answer
150 views

Can I recover data from a RAID5 after accidental changed of disk order? [closed]

An intern yesterday accidentally changed the disk order, now we get there error, "Following containers have missing required members and cannot be configured. Container #0 RAID-5" Then no boot device ...
1
vote
0answers
337 views

Linux CLI program to verify/control nVidia hardware RAID?

I have a server with a Supermicro motherboard that has an nVidia RAID controller on board. When I boot up, I can hit F10 and see/modify the RAID settings. However, I don't want to reboot this server ...
0
votes
1answer
474 views

RAID: replacing a disk before it fails

We have a RAID 5 setup (Megaraid SAS ROMB) with 4 930 Gb physical disks running as a 2.7 TB VD. Recently (a few months back) we had a drive fail and had to leave it in degraded mode for ages (various ...
0
votes
2answers
120 views

RAID config for write heavy postgresql 9.2 database with four disks

I have a server with 32GB ram, one intel E3-1245 and four 15k SAS disks with a BB LSI MegaRaid controller. I wan't the optimal performance for my server, which will be pretty write heavy at times, and ...
0
votes
1answer
1k views

Checking Hard Disk Health on HP P410 RAID Card

How can I regularly check health of HDDs on a HP DL180 with P410 RAID Card on a live system? hpacucli is installed, however, could not see any options for this feature. Using CentOS, 64-bit. Thanks ...
-1
votes
1answer
312 views

Raid 0+1 vs raid 1 and disk span in windows server 2012 [duplicate]

What is the difference between hardware raid 0+1 and 2 or more RAID 0 with disk span? what are the differences: advantages and disadvantages?
0
votes
1answer
850 views

How to live migrate Raid 6 to Raid 10 - and add hard drives in the process - using MegaCli

I have a new server, that has 6 SATA HDs with 1TB each. I am using a Hardware Raid 01:00.0 RAID bus controller: LSI Logic / Symbios Logic LSI MegaSAS 9260 (rev 03) The server came preconfigured ...
0
votes
2answers
269 views

Raid 1 and Latency

I am aware that RAID comes with certain write penalties, etc and that varies at different levels. I am trying to figure out how latency is affected in RAID 1. From my SAN, I can look at the number of ...
0
votes
2answers
675 views

move raid hard drives between different servers, preserving data [duplicate]

Possible Duplicate: Move raided hard drives between identical servers, preserving data I'm a server beginner working with a Sun x4600 and an IBM x3650. In the event that one of them dies, I ...
0
votes
1answer
191 views

Move raided hard drives between identical servers, preserving data

I have a raid array of hard drives in a Sun x4600 that need to be moved out, and another Sun x4600 ready to accept those hard drives. The problem is: in my limited experience with servers, it seems ...
3
votes
2answers
526 views

Write caching in linux

I have read a lot on serverfault and searched on google about write caching, but still cant find the answer. I have an HP ProLiant DL380 G5 with HW raid with 512 MB Battery backed cache. I use debian ...
0
votes
1answer
256 views

LSI 2208 9286-8e MegaRAID controller beeping when connected to 24-bay NexentaSTOR JBOD enclosure

I am getting beeping from the LSI external RAID controller even if I properly shutdown and there is no array re-initialization. Would I be required to use a battery back (BBU) with the LSI controller ...
5
votes
1answer
133 views

what harm can writeback caching have on a degraded disk array?

At work I administer several machines using (real) hardware raid controllers (with battery backed write caches), and these have the nasty habit of falling back to writethrough behaviour when an array ...
2
votes
1answer
458 views

Online resize logicaldrive on Smart Array P410i

On my HP Proliant server I have hot added 2 extra drives. To expand the current raid 1 array I used the following commands: hpacucli ctrl slot=0 logicaldrive 1 modify raid=1+0 hpacucli ctrl slot=0 ld ...
1
vote
1answer
198 views

Two raid controllers in one HP ML350 G4 server

Here's the situation: I have running HP Proliant ML 350 G4 server, which already has Adaptec AAC-RAID controller and 2 HDD built as Raid-1. Now, I want to add another 2 HDD but for them I have another ...
1
vote
2answers
1k views

Can a PERC H700 controller card recognize the full capacity of 4TB drives?

For example if I go to create a new virtual disk in Dell OpenManage Server will it see the full capacity of the physical drive? I know it's supposed to be able to use a full 3TB drive but I can not ...
0
votes
1answer
200 views

Dell Perc 6i raid5 array: replace drives and expand VD?

I have a Dell T300 with a Perc 6i, to which 3 500Gb drives are connected. The are assembled into a raid 5 ~1000Gb VD. This setup is working fine, however system is filling up and I would like to ...
1
vote
3answers
6k views

How to replace failed drive in RAID 5 array in HP DL380 G4 server

Sorry for not providing more information when I previously posted this question. More detail is provided below. Any feedback would be welcome. I have a HP DL380 G4 2U server which has 6 drive scsi ...
2
votes
3answers
148 views

Will a raid cache be better for performance than hard drive cache speeds?

In a device that has raid 5, and a "raid cache" of 4GB, does this help performance? I have 32MB cache hard drives but I was wanting to know if the 4GB cache will make up for the difference in ...
3
votes
1answer
798 views

Rebuilding RAID 10 array with two failed drives

I have dedicated server with 4 HDD in hardware RAID 10 configuration and It worked fine until yesterday, when It started to crash randomly on couple minutes. I’ve contacted my data center and they’ve ...
3
votes
1answer
550 views

moving raid 10 to another identical server both on Smart Array 6i controllers

I have dead HP DL 380G4 with RAID 1+0 with 1 logical volume from 4x72GB drives on built-in Smart Array 6i 128Mb BBWC. It was shut down properly. It seems it was usual death for Proliant with ILO led ...
2
votes
1answer
579 views

RAID 1 configuration does not show after installation

I used the HP Smart Array Configuration utility to setup a RAID 1 array (hardware P400 controller) using four disks. I created 2 logical drives with physical hard drive 2 mirroring drive 1 (o/s ...
0
votes
2answers
110 views

New harddisc in RAID fails after only a few days

Last weekend I had to replace one harddisc in a RAID 1 on a PERC/5i controller because it reported it as failed. After replacing the disc it worked for 5 days and then the controller started ...
1
vote
1answer
258 views

internal RAID (on PCIe 3.0) versus external Thunderbolt RAID like Pegasus R6

I want to build up a new server-config in a small SOHO environment for some virtual machines (VmWare Workstation), like Firewall/VPN or Win8-WS for external access, etc. Some VM’s will be heavily ...
1
vote
0answers
186 views

Possible bad raid card / hard disks (LSI 9261-8i)

I am in a bit of bad spot at the moment, i have a dedicated server hosted by someone else, it has a LSI 9261-8i raid card installed, attached is: 3x300GB SAS 15K rpm disks (in RAID5) 5x2TB SATA ...
3
votes
1answer
293 views

Manually recovering a RAID5 array, how to approach?

Basic situation: I'm looking to manually reconstruct a RAID5 array for which the controller has lost the configuration. To complicate matters, the volume is encrypted with full disk encryption (to ...
0
votes
1answer
1k views

Configure raid for IBM x3200 M2

I have a x3200 server and I have planing to use raid 1 for mirroring Sata Hardisk . I am searching on google to find raid server manager for x3200 , but no luck . Is there another way to configure ...
1
vote
1answer
177 views

RAID 50 24Port Fast Writes Slow Reads - Ubuntu

What is going on here?! I am baffled. serveradmin@FILESERVER:/Volumes/MercuryInternal/test$ sudo dd if=/dev/zero of=/Volumes/MercuryInternal/test/test.fs bs=4096k count=10000 10000+0 records in ...
1
vote
1answer
59 views

Ordering new Virtualization Hosts - Do I need a Raid controller if my storage is shared?

I am planning to order some new servers. It crossed my mind that I can reduce my costs a bit if I do not order a raid controller. The logic behind, is that my storage is on a shared storage server, ...
2
votes
0answers
340 views

linux hardware raid 10 / lvm / virtual machine partition alignment and filesystem optimization

I've been reading everything I can find about partition alignment and filesystem optimization (ext4 and xfs) but still don't know enough to be confident in setting up my current configuration. My ...
-1
votes
4answers
7k views

How to check HDD health in Linux

I am facing issue with my HDD and I need to know what is the command or application to check the Health of the HDD in LINUX REDHAT
-2
votes
2answers
214 views

Is it okay to shut down Adaptec 5085 / MSA60 raid for 5 hours?

Adaptec Raid 5085 with no battery (on the raid card) 6 MSA60s Raid 10 Big APC UPS with low load Our building power needs to go out for 5 hours. Is it okay to shut down the raid ...
1
vote
0answers
171 views

Can I use tw_cli migrate to grow a RAID10 unit where the drives for that unit were each replaced one by one with larger drives?

Can I use tw_cli migrate to grow a RAID10 unit where the drives for that unit were each replaced one by one with larger drives? (And the array was rebuilt after each replacement operation.) I am ...
0
votes
1answer
160 views

Do I need to rebuild the array after putting in a new hot spare?

So my experience with RAID is minimal. So I figured I'd come and ask here. We have a 16 drive RAID system that have 15 drives in RAID 5 with a hot spare left over. Recently one of the drives in the ...
21
votes
4answers
1k views

Do raid controllers syncronize HDD platter rotation?

I'm in the market for a new storage solution. While researching various specs one of my coworkers said that some raid controllers can synchronize HDD rotation to the effect of all drives' sector/block ...
1
vote
1answer
192 views

Poweredge R710 configuring RAID 10 with one disk missing

I have ordered Poweredge R710 server with 4 diskas planning to configure them as RAID10. However I only got 3 disks delivered (4th will be delivered in 10 days). I am wondering can I create RAID10 ...
2
votes
2answers
68 views

RAID Controller Link Speed

I was wondering what sequential speed should I expect from a RAID controller that has 1 x MiniSAS 6Gbps port. In the product details -> Data Transfer Rates: Up to 6Gb/s per port Does this MiniSAS ...
5
votes
2answers
1k views

LSI 9260-8i w/ 6 256gb SSDs - RAID 5, 6, 10, or bad idea overall?

We're provisioning a new production server for our reasonably busy website. Our choice of host have available a 6 drive configuration with a LSI 9260-8i card. My initial thought was to fill all six ...
0
votes
1answer
183 views

Maxed out disk space on RAID10. Thoughts on moving forward?

I have (4) 146GB HDD set to a RAID10 on one server. I have now run out of disk space and I would like to increase it, however, I do not have any available slots to install more HDD's and no available ...
1
vote
1answer
168 views

sqlserver 2005 sp3 poor performance and scheduled job failing

When executing the Microsoft SQL Server 2005 best practices analyzer, I am getting some reported as follow: The Outdated system driver [C:\WINDOWS\system32\ntoskrnl.exe] of System that can cause ...
3
votes
2answers
365 views

Adaptec 2405 “Knight Rider” LEDs - fault?

I have an Adaptec 2405 installed on ESXi 5.0. When the card is idle, it flashes the red LEDs back and forth, Knight Rider -style, just like this video. Is this normal, or is this a fault? I have dug ...
3
votes
2answers
14k views

Can't enter HP SmartArray P410 RAID ORCA set-up on HP ProLiant DL320G6

I've just installed an HP SmartArray P410 controller into my HP ProLiant DL320G6 server. The controller seems detected by the server BIOS (it shows up in controllers list in the BIOS set-up), hard ...
4
votes
1answer
230 views

Possible to migrate RAID 10 system from 2TB Seagate to 2TB WD?

A couple of our servers have ST32000641AS (2TB Seagate desktop drives) in RAID 10 using an Adaptec 2405 controller. I've been told by Adaptec that this is a bad idea and we have, in fact, already ...
5
votes
2answers
1k views

Linux: How to align partition and file system on hardware RAID

I have a test box (PowerEdge 2950) with a Perc 6/i and 4x 15.5k SAS drives attached (with 512 byte block sizes). These are in a single RAID 5 virtual disk with a 64KB chunk size. I am creating a ...
4
votes
1answer
227 views

Dell 2950 - Can I mix SSD with spindle HDDs?

I have a Dell 2950 with a Perc 5/i controller inside it. I don't want to spark a debate about drive types and which is "better" etc etc. Just simply; I would like to put in 2x Cheetah 15.5k SAS ...
0
votes
2answers
1k views

RAID Controller Compatibility HP ProLiant DL360 G5/6 for DL380 G5

I'm sorry if this question is kind of stupid, but I wonder... Is it possible to use the RAID Controller from a DL360 G5/G6 for a DL380 G5? You see, we have several decommissioned DL360 G5/G6 lying ...
0
votes
2answers
1k views

Dell PowerEdge 1950 how use “raw” disk instead hardware raid Perc 5/i

I have Dell PowerEdge 1950 with hardware raid Perc 5/i. I want use software raid md/lvm. Is any way to totally disable this raid and see "raw" sata disks? I play alot with BIOS , enable SATA, ...
0
votes
1answer
505 views

IBM ServeRAID 8k level 1 critical

This is my setup: Lenovo ThinkServer RD140 IBM ServeRAID 8k controller Four Seagate Barracuda 1TB hard discs, organised in two RAID-1 arrays Now the third disk is defunct (orange light flashing). ...
1
vote
0answers
384 views

Grub2 won't install on fresh Ubuntu 12.04 LTS Server installation

I have a hardware RAID 1 which seems to be recognized find by the Ubuntu installer. I choose the "Entire Disk - Guided" partition strategy and accept the defaults, writing them to disk. When it ...