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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0
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2answers
277 views

SW ZFS vs. HW RAID controller

I run a FreeBSD 10.1-RELEASE webserver, and I have 2 sata HDD on a HW RAID1 controller, but when I installed the OS, it won't do it on a ZFS filesystem (for mirroring as I intended to) but I was ...
1
vote
1answer
108 views

Does hardware RAID1 offer significant advantages to S/W RAID in a computer cluster that's highly redundant?

I'm about to set up a Linux cluster of 5 physical server nodes (more nodes to be added later, probably). the cluster will be managed by Proxmox (and yes, it works in software RAID) shared storage ...
1
vote
2answers
853 views

How does LSI MegaRAID actually lay out RAID10 sets?

I'm trying to set up a RAID10 set on an LSI MegaRAID controller. It is unclear to me how the RAID controller will actually lay out the RAID set on the physical drives. Part of the problem is that ...
3
votes
2answers
11k views

HP ProLiant MicroServer Gen 8 - Hard Drive Configuration?

I have a HP ProLiant MicroServer Gen 8 box. I installed a 4tb drive and created a simple array. The raid controller saw the entire drive. I then used IP 6.1 to install Windows Server 2012 Standard. IP ...
0
votes
1answer
300 views

How to check ESXi 5.0 LSI raid rebuild status

Product name: LSI SAS3041E Is it possible to check the status of the rebuild? At the moment I only see that the raid is rebuilding/syncing from the lsi_log script, /var/log/vmkernel.log and vSphere ...
-1
votes
1answer
205 views

LSI MegaRAID 9240-4i & RAID1 (mirroring) on ZFS filesystem

Exist any incompatibility between an existing virtual drive created on LSI MegaRAID 9240-4i SAS/SATA Controller with RAID1 and the ZFS filesystem? I tried to make mirror(2xSATA HDD 300Gb) on freebsd ...
0
votes
1answer
134 views

Compaq Smart Array 431 with 3.13 kernel

is there any way to use Compaq Smart Array 431 controller on 3.x kernel? I have 431 board with 4 disks, that are seen by the controller during POST, but I'm unable to communicate with it on Linux ...
1
vote
2answers
734 views

R610 SAS6 Raid 1 Not Recognizing Replacement Drive

I have a Dell R610 with a SAS 6 controller. There's 2 drives (slot 0 and 1) setup in a raid 1. The drive in slot 0 failed and was replaced. However when I installed it (slot 0), the SAS6 controller is ...
1
vote
1answer
385 views

connecting HP gen 5 SAS raid cage to a third party (3ware, LSI) controller?

I have a ML350 G5 that I'm thinking of repurposing to save money. I'm looking to install FreeNAS but it (ZFS) doesn't play nice with the HP e200i card that's part of the motherboard from what I've ...
3
votes
2answers
877 views

New RAID hdparm slow

I just got a HP DL180 G6 that has 25X 146GB 15K SAS drives, 36GB RAM, 2X 2.0GHz Xeon 1333Mhz FSB. For fun I configured them all in a single RAID 0 and installed Ubuntu on it to see how fast it could ...
0
votes
1answer
84 views

How do I connect 16 SATA-drives to one Adaptec ASR-6805 KIT? (2 SFF-8087 Internal Ports) [duplicate]

Kit includes only 2 cords SFF-8087 to 4xSATA... Sum is 8. I need 16. What should I do? No way to change the controller. But can buy additional cards or wires if needed. Please advise.
0
votes
1answer
358 views

Dell H700 SSDs and HDs in different RAID groups?

I am about to purchase a Dell R610 and use a H700 RAID controller. I was wanting to add 2 X SSD (480G) RAID 1, and 2 X HD (2TB) RAID 1. In reading over the manuals I saw: SSDs require the PERC 6/i or ...
3
votes
1answer
4k views

Trim support in Hardware RAID (Perc H700)

We are about to order a dell R610 with a H700. We were thinking of using 2 X Samsung 850 Pro 512Gb drives in RAID 1. The question is does the Perc H700 support TRIM in hardware RAID 1? The answers I ...
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votes
2answers
216 views

replacing 3 drives out of 8 in a server [closed]

We have a Dell R510 server running SQL 2008 R2 with 8 x 300GB drives running Raid 5. We (just noticed) we had three bad drives with blinking lights so we powered down the server and replaced them ...
2
votes
3answers
291 views

Would the data on the RAID Card Cache and Drive Cache be lost when a kernel panic happens?

Is a BBU necessary when you have A+B power? Would the data on the RAID Card Cache and Drive Cache be lost when a kernel panic happens and you are forced to do a cold reset?
3
votes
1answer
142 views

When does a Raid restore redundancy after a broken sector is flagged as defective?

What happens when I flag a sector on a hdd in a RAID setup as `defective (GLIST) ? Will the data be written to the replacement sector right away or does this depend on the actual setup/settings ...
0
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0answers
316 views

Sata RAID5 Orphan Drive

so today, one of our hadware RAID5-controllers (Sil3124 (r5), 4x 2TB) went into degraded / legacy mode without any notifications. Additionally, automatically rebuilding the raid-group failed: Event ...
4
votes
1answer
722 views

Partition alignment on MegaRAID RAID 1 with 4k sector (advanced format) drives

I want to setup RAID 1 (mirroring) on a LSI MegaRAID SAS 8708EM2 (1078 chipset) with 4k sector (advanced format) drives. To the best of my knowlegde the controller does not officially support 4k ...
7
votes
1answer
2k views

How do you connect more than 4 drives to a LSI 9361-4i MegaRAID controller?

I’m fairly new to proper hardware RAID having only used it in pre-built server machines before, but on the recommendation of some friends who work for datacentres I’ve bought an LSI 9361-4i MegaRAID ...
2
votes
1answer
1k views

RAID5 array Ready for Rebuild

I've inherited administration of a server with a RAID 5 array. We have a damaged database on the array that is just over half the allocated size, so makes recovery impossible. I recently changed the ...
5
votes
4answers
10k views

Samsung 840 Pro SSDs in a Dell R720

We have a MySQL database server running on an Dell PowerEdge R720 (PERC H710 Mini RAID controller) ( (Ubuntu 12.04). We're considering upgrading the 2 x 146GB 15k SAS drives to Samsung 840 Pro SSDs. ...
6
votes
1answer
2k views

Replace HP Smart Array E200i without losing data

I've got a Smart Array 200i which seems to have some bad slots (slot 3 and slot 5). It doesn't matter what HD I put in these slots, it keeps telling me the drive is bad. My question is two-fold: Is ...
0
votes
1answer
684 views

Mac Pro says RAID degraded but all drives showing green status

OSX 10.9 - RAID Utility says RAID array is degraded but all drives are showing green All started after error log Drive 3:5000c5004e189ddf missing - Previous drive status was inuse Now getting ...
0
votes
1answer
304 views

3ware raid controller does not get a proper reset signal after a reboot

I have a linux server that has a 3ware controller 9650SE-4LPML connected. Today, I migrated this server with all its disks and raid controller to a new motherboard + cpu + ram (gpu is also changed). ...
0
votes
2answers
205 views

1 x Raid card and 6 sata drive over 1 SFF-8087 port [closed]

I have a question regarding LSI00328 LSI MegaRAID SAS 9271-4i Can I connect 6x sata drives to -4i card or I need -8i version
1
vote
1answer
84 views

Extract data from server without causing high disk IO

My current diagnosis is that there is a hardware fault, either related to the memory of the hardware RAID controller or something related to the extra juice the hard drives requires when running on ...
0
votes
1answer
81 views

Will 3ware controllers continue to rebuild when I reboot the computer?

I am using a 3ware 9690SA-8I controller and one drive in my raid 6 hick uped and now the raid is rebuilding. Meanwhile I noticed I have an unfortunate combination of stupid programs and I need to ...
0
votes
2answers
2k views

Bandwidth with SAS expanders and RAID controllers

Having a RAID controller that has eight internal SATA3 lanes, you can get 6 Gb/s on all eight drives. What if I connect a 24 port SAS expander to an eight port RAID controller, do I still get max ...
0
votes
1answer
45 views

Merge two sas card into one

I have one existing raid card (9240-8i)with 8 sas hdd, but i want to add 8 more hdd with another raid card (same model), but i wan to merge with existing raid and add it as expansion, can it be done? ...
0
votes
1answer
2k views

Windows Server 2012 and recognizing RAIDed SSDs as an SSD

Problem: Because defragmenting is detrimental to SSDs and decreases their performance/lifespan, its important that modern OS's use TRIM instead of defragmentation. If an SSD is incorrectly recognized ...
6
votes
3answers
19k views

What is the difference between a HBA card and a RAID card?

I thought I knew the difference between HBA and RAID. In my mind, HBA is offloading from the main motherboard/CPU and is simply JBOD... usually has an external SAS ports, whilst a RAID card does the ...
0
votes
2answers
333 views

Wiping hard drives in an IBM DS3512

I have an IBM DS3512 RAID storage device, which I'm planning to sell. How would I reliably wipe my data off of all the hard drives? As far as I can tell, it abstracts away all direct access to the ...
20
votes
8answers
31k views

RAID-5: Two disks failed simultaneously?

We have a Dell PowerEdge T410 server running CentOS, with a RAID-5 array containing 5 Seagate Barracuda 3 TB SATA disks. Yesterday the system crashed (I don't know how exactly and I don't have any ...
0
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2answers
2k views

How to monitor RAID1 system with Dell PERC H200 controller?

I have a server configured with RAID1 using a Dell PERC H200 controller. I tried to use smartmontools to monitor the disks. But after installing it and running the command, it says SMART support is ...
0
votes
1answer
55 views

Converting Non-Raid to Raid

I have a server that currently has one 1TB drive in it. I just bought a 1TB drive to put in Raid-1 with it. The server already has data on it, so my question is what do I have to do to make it a raid ...
0
votes
1answer
108 views

P410i: replacement disk disk is not synchronizing; Port ID changed from 1l: to 2l:

Little problem: Our SA 410i changed the adress of slot 5 of the disk-backplane from Port 1l: to Port 2l:. I don't know why there were no configuration changes made. We have an HP 380 G6 with an ...
1
vote
1answer
400 views

If you use Intel Rapid Storage for RAID1 on Linux server, how would you know 1 SSD is failing?

I use the motherboard's RAID1 to mirror the 2 SSD, in Linux server it see only 1 'Intel Volume1,' in times where 1 SSD fail how would I know? Thanks.
0
votes
1answer
55 views

Is it possible to install OS during RAID scrubbing?

One of our servers crashed a few days ago. I had to recreate the RAID container with the remaining disks. Currently the system is running the scrubbing process (screenshot below). I would like to know ...
1
vote
1answer
117 views

How to copy RAID 1 HDDs from one server to another Identical server

I have one IBM X3100M4, type 2582 windows server and having 2 x 500 GB HDDs in RAID Copy. Now brought new server and having blank HDDs. How can I copy RAID HDDs from Old server to new server? I have ...
1
vote
1answer
889 views

HP Proliant G7 hardware RAID configuration automation with ribcl

I have been trying to automate hardware RAID configuration of HP proliant machines before OS installation (So I can not use hpacucli) ssh into iLO3 doesn't have option for RAID configuration I use ...
1
vote
3answers
120 views

4 Disk - RAID(5) - 1 alleged faulty drive

I have a OWC Mercury Pro Elite Qx2. I have 4 4TB Hitachi drives setup on a RAID 5. One day, the red light came on indicating that my C drive has failed. I took it out, and put it on my docking ...
6
votes
5answers
4k views

RAID level confusion (MegaCli vs megasasctl output)

I'm utterly new to working with LSI MegaRAID controllers and I'm confused as to what RAID level I am actually running. My server is equipped with 4 disks, 4TB each and I would like to have them ...
0
votes
2answers
135 views

Transfer from RAID-1 to RAID-0 — easy as cloning?

I have a RAID-1 of 1TB drives using on-board RAID. I have 2 new 240GB SSDs I want to place in RAID-0. This is Windows Server 2012. I know with disk cloning/transferring that it is important going ...
4
votes
1answer
1k views

How to update SSD Firmware on RAID Controllers

Got some servers with RAID Controllers and SSD. Raid Controller: LSI MegaRaid 9271-4i SSD: Intel 520 The MegaRaid controllers have the ability to update drive firmware using MegaCLI. Intel for ...
1
vote
2answers
10k views

What is the performance implication of hardware vs software RAID in 2-disk RAID0/RAID1 setup?

I am choosing between two similar models of servers, one of which has software RAID, while the other hardware one. Servers in question are SYS-E32-1 and SYS-E32-3 from So you Start (an OVH brand) and ...
3
votes
1answer
767 views

Large write with dd fail on RAID-5

I have a server with a RAID controller which connects to a JBOD over SAS. JBOD is populated with 16 SAS-HDDs of 3TB (8 of one make and 8 of other, same rpm). I have configured 3 logical drives with ...
0
votes
2answers
54 views

Migrate unix-system to hardware RAID-5 possible?

At the moment, I have a Intel SR2500 with 5 disks running at home. 4 of the disks aren't used at the moment due to maintenance-reasons. Because it's an expeiment-laboratory-machine where I can try ...
2
votes
2answers
652 views

Email notifications about hardware RAID status

I have a server with HP Smart Array hardware RAID controller. To monitor its status, I use cpqarrayd. /etc/default/cpqarrayd contains DAEMON_OPTS="-t localhost:162" to send SNMP traps when something ...
9
votes
5answers
42k views

How to monitor the hard disk status behind Dell PERC H710 Raid Controller with CentOS 6?

I have a Dell server running CentOS 6 using PERC H710 Raid Controller card with Raid 5 setup and I want to monitor the hard disk failure/working status behind the Raid Controller. Then I should be ...
1
vote
1answer
3k views

LSI MegaRAID SAS 9261-8i: Disk isn't recognized after replacement

I've got a Supermicro Server with an LSI MegaRAID SAS 9261-8i Raid Controller inside. There were 3 Disks attached to the controller which were configured as RAID5 array. One of the disks failed ...