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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3answers
28 views

LVM and RAID setup

I am relatively new to LVM and RAID. I have a Server (HP ProLiant) with a Hardware Raid (RocketRaid 2710). Given two HHDs (500 GB) I wanted to setup RAID 1 (Mirroring). When installing Ubuntu I made ...
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2answers
47 views

Hardware RAID configuration on Linux

I have a linux server with a RAID controller and 6 HD (4TB each). I want to mount a calculus server and I am thinking in two possible configurations: Hardware RAID 10 using 6 HD (only 12TB available ...
1
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1answer
29 views

Checking RAID events log or history of a Smart Array P400 in a HP ProLiant DL380 G5 server

In a rack-mounted HP ProLiant DL380 G5 server, running Linux (RHEL - Red Hat Enterprise Linux Server - version 5.9, 64-bit): after a shutdown and power on, one of 4 hard disks of a Logical Drive using ...
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1answer
20 views

LSI iBBU07 troubleshoot: BBU not detected?

I have bought a used LSI iBBU07 for my LSI 3ware SAS 9750-8i RAID card. And now the card cannot detect the BBU even though I have seemingly installed it correctly. I would like to know that: Is ...
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2answers
26 views

How to make individual disk as logical/physical disks from HP smart array

Hi I have an HP server DL Gen 8, running ubuntu Trusty. I have hpssacli running. If you see my config below I have 6 unassigned drives. I can easily create a RAID config, that's not the issue. But ...
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0answers
16 views

Add a new disk to raid1 on LSI Logic SAS1064E B1 controller

I've a trouble with my (two disks) RAID1 array running on a LSI Logic SAS1064E B1 controller. The array is degraded and one disk isn't detected by the controller. I've tested both disks with a sata to ...
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1answer
27 views

Raid Controller: Activating Write Back [closed]

We need to activate "write back"-mode on a raid controller in a storage server. Do i need to reinstall the operating system or rebuild the raid setup after activating write back? We can´t test it, ...
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0answers
8 views

Hot expand RAID5 unit on 3ware 9650se

Can I migrate a 5 disk RAID5 unit where the drives for that unit were each replaced one at a time with larger ones (2TB to 3TB)? I imagine the command would look something like this in my case. ...
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1answer
21 views

How to find out raid in linux: cat /sys/block/sda/device/raid_level vs dmraid -s in Redhat?

I am trying to find what raid level and what storage controllers are there in my remote HP server. I can find out the following details which storage controller, size of the disk, model etc. But ...
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0answers
10 views

Raid Array disappeared and a reboot made it return.

We have an LSI raid card in a RAID 6 configuration. Yesterday our NMS system reported a problem with the machine and on investigation the drive was missing from Windows. Disk management didnt report ...
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1answer
26 views

3ware 9650se not recognizing SAS drives, what else should I check? [closed]

The card works fine with SATA Raptors but can't see 2 different models of Cheetah. Drives are fine and have standard fw - visible with LSI 3081ER.
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1answer
42 views

How to estimate the time taken by RAID rebuild?

I was being stupid and when smoke testing my storage server I forgot to plug in the power of one of its drives (D'oh!) Now I am stuck in rebuilding the RAID-5 array. (Thank god it is RAID-5 or I could ...
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0answers
38 views

Adaptec 5805 and WS 2012 R2 - Optimal raid array absent from disk management

I'm running a file server from a VM hosted in hyper-v server 2012 R2. My hyper-v installation is on a raid 1 array made of 2 ssd. This raid controller is AMD SP5100 integrated to the motherboard. I ...
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1answer
32 views

Using Samsung 850 PRO on Lenovo System with hardware raid (e.g. x3100 M5 5457EHG) [closed]

Having made quite a market research (price, location, availability, specs) i ended up choosing Lenovo System x3100 M5 combined with two Samsung 850 PRO Series 1TB to be set on a raid 1. Now before i ...
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6answers
3k views

Why is RAID 0 classed as RAID when it's not redundant?

I've worked in IT quite a number of years, so I know what a RAID array is, what RAID 0 is, RAID 1, 5, 6, 10, 50, 60, etc., but something sprung to mind in a recent conversation at work; if ...
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3answers
138 views

Is there a linux monitoring utility for Dell PERC H700?

I'm looking for a utility to monitor my RAID 5 setup, the card is a Dell PERC H700 with the following chipset: [root@example.net ~]# lspci -v|grep LSI 03:00.0 RAID bus controller: LSI Logic / Symbios ...
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0answers
44 views

RAID 10 Unexpected sense followed by Initialization corrected medium error

The MegaRAID controller on one of my servers just started spamming Information messages this afternoon. It will send six to ten Unexpected sense messages from PD: 7 followed by roughly the same amount ...
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0answers
42 views

Is it possible to take a gold image from a RAID 1 server

I have a cluster environment where i have two identical servers with the same exact configuration running Windows Server 2012 R2 DC. Setting up the servers for testing from scratch is a time consuming ...
0
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1answer
20 views

Finding out which is the failed drive on Intel SRCASRB RAID Controller

There is very old server with Intel RAID SRCASRB Controller with 4 x WD5003ABYX-0 500GB drives connected to it in RAID5 array. One of those drives has failed and I want to replace it. Since server is ...
2
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1answer
221 views

HP Code 341 “Physical Drive State: Predictive failure. This physical drive is predicted to fail soon.”

this is my first post so bear with me here :-) Background: I have a RAID5 setup with 4 disks that have been working perfect for years. After one drive failed, I installed new drives which where ...
0
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1answer
90 views

4TB drives in RAID 1 with Promise SuperTrak EX8350

Two 4TB drives are connected to a Promise SuperTrak EX8350 controller with the intention of setting-up a RAID 1 array. Before attempting to create any logical drives, the capacities of both drives ...
3
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1answer
59 views

FBWC and Zero Memory (ZM) RAID Controller on HP DL360p

I got a chance to work on HP DL360p Gen8 server with Smart Array controller P420i/ZM What are the advantage of having FBWC or BBWC Will it be possible to add an external P420/1GB or P420/2GB to ...
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0answers
38 views

host adapter vs bios

recently I had to create a raid 10 from 32 disks using the LSI 3108 hardware raid card. But after I create the virtual drives and initialize them, I got this msg in the boot prompt, "2 virtual drive ...
1
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1answer
57 views

Can a RAID card be used just to connect an optical drive?

This is one of those daft "I bought some used equipment on eBay' type questions. I have an IBM xServer with a SCSI RAID running CentOS 6 and I bought this 3Ware 9500 SATA RAID card thinking I could ...
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1answer
62 views

HP ML360 G6 server won't boot after swapping system disk

I am hoping for some help since I am completely out of ideas how to solve this! I have a ML360 G6 server with a smartarray p410 controller. All disks conifured in 4 separate arrays in raid 0 (I know, ...
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0answers
16 views

M5015 Disk controller - Replace failed disk used working disk

I have an IBM X3200 M3 machine with a M5015 SATA Disk controller (RAID 5). One of the disks has failed ie orange light flashing on the disk. I intend to replace the damaged disk with a used disk of ...
0
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1answer
114 views

How do I clone a single drive onto a new RAID 1 array?

Here's a little background on the situation at hand. I have a DELL Precision T7600 at work that I'm responsible for maintaining, which just lost a hard-drive, thankfully just the /home directory was ...
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1answer
39 views

Why does linux automatically start a hardware RAID1 resync, on two new and blank disks and how do I stop it?

I've looked at similar posts about software RAID, but this is a hardware RAID question, and googling did not turn up anything so I turn to you guys. I understand that hardware RAID has a single-point ...
0
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1answer
174 views

How is LSI FastPath different from Software RAID?

This question pertains to SSDs on RAID levels without parity (like RAID 0, 1, 10). The recommended settings for FastPath are to set the Write Policy to Write Through, Read Policy to No Read Ahead and ...
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0answers
151 views

wrong # of devices in RAID set on Centos 6.7

I just set up one of our servers with Centos 6.7. It's a machine that hasn't been in use for at least a year. I had to set it up a couple of times but every time one of the problems was with the ...
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0answers
60 views

How to reset Areca RAID card built-in SAS expander password?

I just bought used ARC-1882IX-12 card but the seller forgot password to the SAS expander. The web management worked well with default "0000" password. How to reset it ?
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1answer
22 views

Are there any two-bay hardware bit/block level replication devices (perhaps RAID-1)? [closed]

Here's what I'm hoping to do: Have two drives in a hardware bay that can be pulled from the front without dissassembly Read and write to it as a single (NTFS) disk Be able to pull either drive and ...
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0answers
100 views

Raid 10 and Stripe size LSI Megaraid

I recently set up a RAID 10 volume on a server with an 12x6TB disk array and a LSI Megaraid controller. As I put it into production I realised that something wasn't quite as it should be, as the ...
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1answer
67 views

Perc H710 claims battery is faulty or discharged — twice

Bought a Perc H710 without battery for a Dell T420. Installed it, cabled it, etc. It's been running great for months. I later bought a backup battery (model #70K80) from a reasonably reputable ...
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1answer
13 views

Attaching new drives to raid adapter

I'm new to raid configurations, did only software raids until now. There is a server with a raid adapter that can have 4 drives attached to it. Currently it has 2 hdd, each with 1 TB. From the OS ...
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0answers
14 views

Resetting a raid 5 array on an hpproliont ml350 g6 server or find the original drive order

The data on the array is not important I just need the array back online I took out the drives and didn't order them correctly I'm an idiot I know is their a way to eat her reset the pattern or dins ...
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2answers
3k views

Install CentOS 7 on HP dl120 gen9 server with b140i raid controller

I'm trying to install CentOS 7 on a HP DL120 gen 9 server with a b140i controller. I have 4 1TB HDD setup in a raid 1+0 and the CentOS installer doesn't seem to recognize the logical drive created ...
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0answers
26 views

Adaptec Raid 5405

I am having an issue with my Adaptec RAID card on my dedicated server, my server wasn't behaving so rebooted only to get this message: Fatal error: Controller monitor failed. Controller not started ...
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0answers
34 views

Install RocketRaid 644L Raid Controller driver on Ubuntu

I bought a RocketRaid 644L and get stuck at driver installation. uname -a Linux hb38-backup 3.2.0-41.generic #66-Ubuntu x86_64 GNU/Linux lsb_release Description: Ubuntu 12.04.2 lspci RAID bus ...
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4answers
150 views

Can I detect hardware RAID infromation from inside Linux?

When I'm inside of Linux, I can get the following information from lsblk (irrelevant drives removed from output): NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 298G 0 disk sdb ...
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0answers
53 views

IBM MegaRAID Storage Manager, Build RAID1 from existing disk

Recently my RAID Controller went FUBARBUNDY and decided to drop my RAID1. The server would not boot since then. According IBM support expert, rebuilding that RAID array would wipe data on both disks. ...
0
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1answer
90 views

Intel RAID controller cannot open BIOS and doesn't recognize hard drives

I recently bought a second-hand Intel RAID controller (SRCSASLS4I) for my Ubuntu server setup (YunoHost actually). I connected 3 hard drives that had previously been used for a software RAID (I did ...
0
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1answer
30 views

RAID 5 - disk rebuild and strip data

we have a raid 5 with 12 ssds plus 2 spares and one came to fail, now one of two of spares is active and a rebuild is happening: in raid 5 data is striped in all disks or it is stored in each disk ...
0
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1answer
52 views

Safe and beneficial to enable HD disk cache for disks in RAID, or not?

Dell Perc RAID cards (among others) allow you to set the disk cache policy to be either on (meaning, the individual hard disks use their built-in caches) or off (meaning, the individual disk caches ...
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0answers
60 views

driver installation failed on Oracle Linux7.1 :“no ios files found on sda1”

Hardware-RAID installation failed. I have similar problem for this. How to load hpvsa.ko (RAID controller B120i) module in Centos 7.1, (seems no longer supported)? But a little different. ...
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3answers
676 views

What is recommended size of hard disk for a Server?

I have heard that large hardisk >= 1TB are not recommended on the server because they can cause synching issues if one fails + their chances of failure is greater over a longer period of time as the ...
0
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1answer
175 views

Raid 50 on Dell Perc H700 Integrated Resynching state

I have Raid 50 configured on a Xenserver host with a Perc H700 card and a few weeks ago, replaced a disk which had failed. The raid had rebuilt and I am now checking the status of the array via ...
1
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1answer
35 views

Lost Partition on x3650

I have a RAID6 array with 1 logical drive. 3.7TB. The partition has been lost. I've tried several program to recover the partition. The most promising of the bunch was MiniTool Partition Wizard. It ...
0
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0answers
150 views

How can I find out my centos RAID setup, with a LSI MegaRAID SAS 2108 controller?

I've bought an auction box from Hetzner which allegedly has 4 3TB drives in it. As a relative newb to this sort of thing I just want to see some reassurances on the command line that this is all ...
2
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1answer
110 views

Replacing a Self encrypting Hard Drive in an IBM xseries server raid

I have a failed drive in a RAID 5 array in an IBM x3650, Machine Type 7945. The RAID is composed entirely of original IBM SED SAS drives, 300GB ea. Unfortunately I am the purchasing Tech, not the ...