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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1answer
15 views

How does hardware RAID report problems?

I have built software RAID once in the past (CentOS 7 and mdadm) and I know I was able to configure it to send an email when a disk fails. Now I need to deal with an old server (about 10 years old) ...
1
vote
1answer
29 views

Replacing all drives on an existing RAID 1 + RAID 5 setup - all at once or one at a time?

I'm looking at upgrading hard drives in a PowerEdge R720 and need a little guidance. Current configuration: OS: CentOS 6.5 Drives: 2 x 300gb drives (RAID 1) 4 x 600gb drives (RAID 5) I have 6 ...
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0answers
18 views

raid controller strip size on heavy I/O random read

What is the best strip size for raid controller contains heavy I/O (random read) with large files (most of them bigger than 500MB) as the article mentioned this like we should not use large strip ...
5
votes
0answers
127 views

Suddenly slow RAID performance

We recently noticed our database queries have been taking much longer than usual to run. After some investigation, it looks like we're getting very slow disk reads. We've run into a similar problem ...
0
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1answer
32 views

What are the consequences of a hot-spare dying during an array rebuild?

We've experienced a failure of the hot-spare during reconstruction of a failed disk in a RAID5 array. As it seems, we actually lost some data over this, at least the storage bay is giving I/O read ...
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2answers
50 views

RAID can't rebuild Rebuild offen missing HDD

First i would likes to say the raid configurations of my server. Intel RAID 10(4*1TB HDD) two from wd, 1 from hitachi, 1 from seagate + 1 seagate as hot spare Here goes the problem the last hdd ...
1
vote
1answer
34 views

How to create degraded raid6 array using megacli

There is a server with few disks. And - a new server with PERC controller. I would like to migrate existing data into a new server to raid6 which uses 6 disks(4+2). Unfortunly - i don't have enought ...
0
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1answer
40 views

HP ProLiant G6 w/ P410i controller not recognizing ST1000NX0363 drive

I've purchased a new Seagate ST1000NX0363 HDD for my HP ProLiant DL360 G6 Rackmount server. I've installed the drive into one of the hot-swap bays, but unfortunately the P410i controller doesn't seem ...
0
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1answer
21 views

LSI MegaRAID 9271-8i RAID1 disk expansion

I have a RAID1 setup with two 3TB disk, is it possible for me to buy two 4TB disk and expand my DiskGroup?
0
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1answer
35 views

Creating a 2nd virtual disk with PERC H700

I currently have just 1 virtual disk set up with raid 0 for my OS, and would like to create a 2nd virtual disk for just storage. Will I have any data loss/issues with the existing virtual disk by ...
1
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0answers
28 views

Upgrade hard drives to larger size in a RAID 1 Setup on Dell T7500

I have a dell T7500 computer. I currently have 2 300GB drives in RAID1. I would like to replace these drives with 2 2TB drives that I have and keep the data that is currently installed on the drives....
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votes
1answer
96 views

How to connect SAS cable to P440 Cable [closed]

We just bought a brand new HP Smart Array P440, we placed it in the PCI and the server did detect the RAID controller. I want to connect the disks to the raid controller but the slot on the Smart ...
1
vote
1answer
146 views

Converting to Hardware Raid from default Software Raid, backplane 1 connector A0 is not connected Issue.

I have a newer Dell R330 server that came with three 128GB SSD's as well as a software raid S130. After setting up a Raid 1 with single hot spare, I realized that ESXI is not fully compatible with ...
0
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0answers
56 views

megacli - Losing a VD and it's disk changing to unconfigured(bad)

I am running into an odd issue with a RAID-0 Virtual Disk that was created with just one physical disk. That disk was accidentally pulled and reinserted and during that time the VD vanished. This is ...
1
vote
1answer
92 views

Will a H310 Mini or a H200 support Samsung SSDs (840/850 Pros)?

I've been searching around and struggling to find out of a H310 Mini or a H200 will run Samsung 840/850 Pros. I know Dell have their officially branded SSDs, but unfortunately cost is a major issue ...
1
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0answers
18 views

Is a PERC310 Mini compatible with an R610?

I'm going to purchase an R610 soon which is sans RAID card. The spec sheet lists 2x PCIe x8 + 1 "storage x4" slot. However none of the X10 series cards are listed on the spec sheet. I presume that's ...
-1
votes
1answer
39 views

Which raid array will be best practices with seven 1.2 tb hdd system

I have a server which have seven 1.2 tb hard disks. I have to create raid array but i don't decide which raid i use? First of all, first and most important matter is security. At any cost i must not ...
2
votes
3answers
71 views

find out RAID level on HP DL360 server

I have a HP ProLiant DL360 Gen9 server which has three physical 900GB HDDs. Those three HDDs are in some sort of hardware RAID setup. RAID controller is HP 3239 and it uses hpsa driver. For OS it ...
2
votes
2answers
141 views

Expanding a RAID 5 partitions on Dell T610 with PERC 6 with Windows 2008 R2

Here is my dilemma fellas, I have a Dell Poweredge T610 with a PERC 6 RAID controller running on Windows Server 2008 R2. OLD configuration: 3 x 1 TB SAS Drives in RAID 5 configuration I ...
0
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1answer
83 views

Server 2012 R2 — Using Storage spaces with hardware RAID?

I'm studying for MCSA using Server 2012 R2. I'm running a Dell r610 rack server with a perc6/i controller for hardware raid. Hardware raid is set up with a virtual array in a RAID 10 configuration. ...
0
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1answer
107 views

Slow RAID & system performance on large file write

I'm moving a large VHD file to a new VM host over the network. I've checked and double checked every point of bottlenecking here and it is 100% the server doing the writing causing an issue. It's a ...
3
votes
1answer
34 views

Remove spare from OS array, add to data array

OK, from what I've been seeing online (including at this link Repurpose spare drive in HP ProLiant RAID 5 array) it should be pretty simple to do what I need. I just want to get confirmation, since I ...
0
votes
1answer
148 views

Does ESXi 6.0 Support any PCIe x1 SATA RAID Controllers?

I'm trying to find a PCIe x1 SATA RAID controller, that is supported by ESXi 6. I've spent hours searching the ESXi compatibility site, however I have yet to come across one. Is this a fruitless ...
1
vote
1answer
108 views

HP SmartArray Rebuild Logical Drive without data loss

First, let me explain our situation: We had an HP server with a RAID 1 over 2 drives (for the OS) and a RAID 5 over 4 drives (for VM data). The raid recently failed. I say the word failed very ...
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0answers
157 views

IBM BladeCenter S RAID Battery Backup replacement

Does anybody know if is possible to replace the battery inside of a "IBM BladeCenter RAID Battery Backup Module" (p/n 22R6649) ? The battery is a double 4.8V 3500mAh (P/N 17P8979) and is easy to find ...
0
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0answers
42 views

Right way to Migrate bootable Windows Server 2008 SP2 from RAID 5 Vdisk to RAID 0 or Single SATA and ensure Booting?

Did the following 2 identical blank 1 TB SATA drives: Cloned the RAID5 Virtual disk to RAID 0 Drive on Controller Cloned the RAID5 Virtual disk to SATA Drive on Motherboard SATA Port Using ...
2
votes
2answers
164 views

Failed Dell PowerEdge T410: Move Hardware RAID PERC H700: 3 x 300GB SAS (1 faulty) to 2nd T410 for Disk Cloning & Boot

Failed Dell PowerEdge T410: Move Hardware RAID PERC H700: 3 x 300GB SAS (1 faulty) to 2nd T410 for Disk Cloning & Boot FYI - PRE QUESTION CONTEXT: We barely got the original T410 up once ...
1
vote
3answers
112 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 ...
1
vote
2answers
65 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
vote
1answer
459 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 ...
0
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1answer
175 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 ...
1
vote
2answers
58 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 ...
0
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0answers
89 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 ...
0
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1answer
31 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, ...
0
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0answers
28 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. ...
1
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1answer
64 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
13 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 ...
-2
votes
1answer
63 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.
-2
votes
1answer
50 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 ...
0
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0answers
104 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 ...
0
votes
1answer
66 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 ...
31
votes
6answers
4k 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 ...
1
vote
3answers
393 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
109 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 ...
0
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0answers
53 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
votes
1answer
45 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
votes
1answer
796 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
votes
1answer
170 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
votes
1answer
111 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
124 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 ...