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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2
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2answers
77 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 ...
6
votes
2answers
2k 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
209 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
190 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When executing the Microsoft SQL Server 2005 best practices analyzer, I am getting some reported as follow: The Outdated system driver [C:\WINDOWS\system32\ntoskrnl.exe] of System that can cause ...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
487 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
27k 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
254 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
2k 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
259 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
3k 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
2k 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
754 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
420 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 ...
2
votes
2answers
4k views

Non-volatile cache RAID controllers: what kind of protection is there against NVCACHE failure?

The battery back-up (BBU) model: admin enables write-back cache with BBU writes are cached to the RAID controller's RAM (major performance benefit) the battery saves uncommitted and cached data in ...
-1
votes
1answer
2k views

IBM xSeries 226 RAID and windows server 2003 setup

I have an IBM xSeries 226 server and I am trying to set up windows 2003 from its original cd. servers specifications are 1 cpu 4 Gb ram 72X3 scsi disks. I dont know anything about servers this is my ...
0
votes
1answer
286 views

Server with 3ware 8006-2LP won't stop beeping

A server I support startet beeping. One of the RAID-1 disks had an error. I replaced the disk and rebuilt the array, but the server won't stop beeping and one of the drive enclosures is blinking. I ...
0
votes
1answer
961 views

Removing or Adding a disk to a HP MSA60 array crashes everything

I am really new to RAIDs and all that goes along with them. I simply added a disk (same 500mb size and part number) into the MSA60 raid enclosure and basically everything started going wrong. The ...
1
vote
4answers
345 views

Ubuntu Server: Partitioning large hardware raids

I am trying to set up a storage server which has a hardware raid controller and 15x3 TB harddrives. This server is a dedicated server from hetzner.de and I am using the default setup routine ...
2
votes
2answers
754 views

RAID 5 with hot spare or RAID 6 for Production System running two virtual Servers

We are buying a dual hex core ibm x3650 with 64 GB RAM and 7x300 GB HDD. This server is hosting two virtual servers, web server and database server. I am using Double take high availability to ...
2
votes
1answer
166 views

Replace a 3.5" hard drive in a RAID 5 array with an SSD?

With a 3ware 9650SE on Debian 6, can I replace a drive in a RAID 5 array with an SSD? The goal would be to eventually replace each 3.5" hard drive in the array with SSDs. Is there anything I should ...
0
votes
1answer
491 views

Move OS from Software RAID (PERC S300) to Hardware RAID (PERC H700/H800)

A client of ours has a server running Windows that is installed on a PERC S300 software RAID. We want to upgrade this to a larger capacity, so we are also upgrading to a hardware RAID card (PERC ...
2
votes
3answers
306 views

Alternative RAID Controller to an Adaptec 3805 [closed]

Our server room has a HP DL180 G5 with 8 disks (RAID 6) and a flakey Adaptec 3805 RAID controller. I want to replace this controller as I don't trust it (See my first post for more details if you want ...
1
vote
2answers
243 views

Horrible performing RAID

I have a small GlusterFS Cluster with two storage servers providing a replicated volume. Each server has 2 SAS disks for the OS and logs and 22 SATA disks for the actual data striped together as a ...
0
votes
1answer
247 views

raid5 configuration on new dell server, sbs, win2008r2

Looking for a bit guidance configuring hardware raid on a new dell t610, I am basically trying to install Hyper-vR2 as the parent OS, then I will run SBS11 and WIin2008R2 virtually on top of that. ...
3
votes
2answers
2k views

Monitor LSI 3ware raid controller on ESXi

This concerns a server that runs ESXi (v. 4.x or 5.x) installed on drives that are configured into a raid10 using an LSI 3ware 97050 raid controller. I would like to know if there is a way to monitor ...
2
votes
3answers
2k views

Raid-5 Performance per spindle scaling

So I am stuck in a corner, I have a storage project that is limited to 24 spindles, and requires heavy random Write (the corresponding read side is purely sequential). Needs every bit of space on my ...
1
vote
0answers
730 views

Slow disk transfer rate

I have problem with slow disk transfer rate. It's static files server for our website. I was making backup of data and noticed that tar is very slow. So I did hdparm -t and... hdparm -t /dev/sda3 ...
23
votes
3answers
10k views

Linux - real-world hardware RAID controller tuning (scsi and cciss)

Most of the Linux systems I manage feature hardware RAID controllers (mostly HP Smart Array). They're all running RHEL or CentOS. I'm looking for real-world tunables to help optimize performance for ...
2
votes
2answers
2k views

MegaRaid damaging disk by set a drive to “Offline”?

I wanted to test performance in a RAID10 with a "damaged drive". To simulate this situation I've set a single drive to "Offline" by using this command: MegaCli -PDOffline -PhysDrv [45:12] -aAll The ...
3
votes
3answers
8k views

What are the good ways to migrate a RAID array to bigger disks?

I'm looking to replace my hard-drives with bigger-ones and I would like to know what are the best practices in doing this. I have a HP ProLiant with its 256MB version of RAID controller: 03:00.0 RAID ...
3
votes
1answer
1k views

Megaware Raid 10

I have 22 disks and would like to create a Raid 10. Unfortunately my raid controller (MegaRAID SAS 9260-8i) is only capable to handle 8 arrays within a RAID 10. Because of that I could only use 16 ...
1
vote
2answers
4k views

HP StorageWorks MSA60 SAS attached enclosure: how to manage online on Windows?

We have a HP StorageWorks MSA60 SAS attached enclosure, with 12x1Tb SATA disks, connected to a P800 controller. Until now, they were used with a Linux server under the control of an external company. ...
5
votes
2answers
1k views

PERC 6/i | ext4 | raid5 | 4 disks - improve write performance

I am running several fileservers using this controller, filesystem and disk setup. All of them are suffering from poor write performance, once the 256MB BBU Write Cache is full i get really high ...
2
votes
0answers
655 views

does somebody know whether a linux / opensource driver does exist for the apple xserve 3,1 raid controller?

I'm trying to install linux on a apple xserve 3,1 which comes with some strange raid controller that does not get detected by linux. lspci is telling me: 01:00.0 RAID bus controller: Apple Computer ...
5
votes
4answers
1k views

IBM ServeRAID: how to use email alerts?

I just installed a brand old IBM server with a ServeRAID 4Lx card. I installed the driver, and the ServeRAID manager software v9.30. Everyting works as expected. My problem is: Yesterday, when ...
0
votes
1answer
514 views

3ware Raid Migration 9650SE

I'm trying to migrate a single disk on a 9650SE 4LPML to a RAID 1. I'm trying to use 3dm2 to accomplish this, but the only options it will allow me to migrate to is either RAID 0 or RAID 10. I only ...
0
votes
2answers
639 views

Hot swapping a dead drive with hardware raid on linux

I have a server with 4 SATA hot-swappable drives and a 3Ware 9650SE-4LPML hardware RAID controller. The server runs Ubuntu 10.04.3 LTS and I use tw_cli to control the RAID array. So, a disk died and ...
3
votes
1answer
1k views

Can I mix SAS and SATA2 drives on one controller?

I've read here that I can't mix SAS and SATA2 drives on the same controller - is that really true? I understand I shouldn't mix on the same channel, but the same card!? For example, when I plug my ...
4
votes
1answer
651 views

Areca RAID volume and LVM alignment

I have the following hardware: 1x - Areca ARC-1680IX-24 PCIe x8 SAS RAID Card 24x - Seagate Barracuda LP 2 TB 5900RPM SATA 3 GB/s 32 MB Cache 3.5-Inch Internal Hard Drive ST32000542AS I plan on ...
2
votes
1answer
1k views

How to disable mdadm when running hardware RAID

My server Dell R210 runs a Debian squeeze with hardware RAID1 (H200) preconfigured. But I notice that there is mdadm running. Sometimes in backup, or in OS upgrade (to Debian 6.0.4), I have messages ...
-1
votes
3answers
776 views

which raid controller is better, Intel Z68 MotherBoard buildin or Dell PERC5i? [closed]

I have two options to implement raid5 in the server, 6 SATA 2T disks is expected. option1: New Motherboard using Intel Z68 chipset, support 6 SATA disks total and raid 0,1,5 etc. option2: Used Dell ...
0
votes
2answers
3k views

Configure RAID for IBM X3630 X3

How can I setup a RAID for IBM X3630 X3 server with IBM ServeRAID M5015 disk drives? Is there a tool to configure disk drives? I'm using Windows Server 2008 R2
1
vote
1answer
227 views

RAID5 Array issues - copy data or replace drive first

I have inherited a critical situation as follows. 2 x 16-Disk RAID5 Storage systems (one holding master data, one holding backups) Backup system had no monitoring and two disks failed so all data ...
1
vote
1answer
300 views

Connecting 8 x 500GB SATA drives to HP Smart Array P800 controller on 2 external mini ports

I have already 8 drives hooked up the the P800 RAID controller internally. I would like to attach 8 more SATA drives externally. I looked in the documentation but the only thing mentioned for the ...
0
votes
1answer
520 views

What are some tips for cheap and solid hw raid controller card for running ESXi? [closed]

ESXi is great product, however little bit picky about hardware. Can you please reccommend me some hardware raid controllers which work 100% out of the box and are also price-efficient ? I know about ...
1
vote
2answers
490 views

Is HP p212 raid controller supported on Ubuntu 8.04 server LTS?

sorry for my simple question, however I can't find any useful resources on the internet. Except the official HP page about my p212 here. From this I understand that HP doesn't support Ubuntu 8.04. But ...
1
vote
1answer
485 views

3ware 9650SE-2LP “sync” after a drive failure

I have a 3ware 9650SE-2LP card that was set up to mirror two 1 TB disks (let's call them Disk A and Disk B). A couple of months or so ago the array stopped working (gave me an error at boot-up saying ...
3
votes
2answers
9k views

HP ProLiant ML350 G6: Does the RAID rebuild automatically?

One of SAS hard disks of this ML350 died. We're buying a new one and I wanted to ask if I can just take out the faulty one and insert the new one with the server on to let it rebuild the raid or I'm ...
0
votes
1answer
156 views

Tweaks for 3ware raid

Does applying these tweaks to the sdb raid harm any data that is already on the array? echo 64 > /sys/block/sdb/queue/max_sectors_kb echo 512 > /sys/block/sdb/queue/nr_requests echo deadline ...
0
votes
2answers
406 views

raid5 samba upload write slows down

I have Samba installed on a server, that has 8 2TB HDDs in raid5, os is debian 2.6.32, 64bit. When I copy a 3.5GB file to the server, the first GB is transferred with about 100MB/s, but afterwards the ...