RAID stands for Redundant Array of Independent Disks, and is a technology which can provide increased reliability, performance, and/or redundancy by utilizing multiple hard drives simultaneously. RAID can be implemented in a computer via either a hardware or software controller – the ...
-1
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0answers
22 views
Home Network Storage Solution [closed]
I am wanting to install a home network hard drive solution. I am looking for about two GB of space, the ability for it to be connected directly to my home network via an Ethernet cable, Raid 1, ...
0
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1answer
55 views
Ubuntu RAID 1 Booting
I'm trying to install Ubuntu using RAID 1. In this case I have 2 harddisks with equal size to be used for RAID. I've been able to configure RAID 1 when installing
localhost:~# cat /proc/mdstat
...
0
votes
1answer
32 views
Kubuntu 11.10: Random IO errors on HDD in RAID1 array. RMA time?
I'm pretty sure I have a failing HDD here, but just want to make sure it's not some software error before I do the whole RMA song and dance routine with Western Digital.
Bascially, I have a <6 ...
0
votes
2answers
72 views
Is it possible to make raid 0 from 2 ssd drives?
Like in the title, is it possible. I was thinking about that last year but everybody told me that it's not possible due to controller issues. Today I revisited that idea after seeing awesome vids on ...
3
votes
1answer
48 views
+50
Simple mdadm RAID 1 not activating spare
I had created two 2TB HDD partitions (/dev/sdb1 and /dev/sdc1) in a RAID 1 array called /dev/md0 using mdadm on Ubuntu 12.04 LTS Precise Pangolin.
The command sudo mdadm --detail /dev/md0 used to ...
0
votes
2answers
47 views
Linux: Which physical disk is /dev/sdd?
Really the title says it all, but with more detail:
I have a RAID 10 box set up, and one of my drives has failed (/dev/sdd). I have hot swapping enabled, so I'd like to pop the failed drive out and ...
0
votes
1answer
66 views
Can I plug a single hard drive into the “SATA RAID1” socket?
My (6 year old) motherboard has 4 PATA socket, 2 SATA socket, and one socket labelled "SATA RAID1". Since I (sadly) have 4 PATA devices (including dvd-r), 2 SATA hard drives, and have just bought ...
2
votes
4answers
60 views
RAID 1 on 2 external HDDs
I have an Ubuntu 12.04 server based on my old laptop. It's HDD (160 GB) is too small for the file storage I need, so I'd like to attach a couple of external HDDs to it (through USB ports). The data ...
0
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0answers
44 views
How to pronounce RAID 10? [closed]
Should RAID 10 be pronounced as "raid one oh" or "raid ten"?
Personally, I've always said "raid 10" however he now have an engineer insistent that the proper pronunciation is "raid one oh".
0
votes
1answer
30 views
RAID Storage shared between OSs
What is the best solution to my problem regarding a shared RAID between two OSs?
I'm planning on installing Win7 and Ubuntu in dual boot, either on the same SSD or two seperate. I also want to have ...
0
votes
0answers
64 views
Cannot format raid device mdadm
I can't seem to format my newly created raid array (sync has completed) on Ubuntu 12.04 Server (64-bit).
When I try to run mkfs I get the following error:
root@genesis:~# mkfs -t ext4 /dev/md0
...
1
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0answers
48 views
Please evaluate my NAS solution for home use (Linux, mdadm, xfs, aufs) [closed]
I am currently running my home server using Debian Squeeze, on a Intel Pentium E6700 based PC (Intel DQ45CB Board), and 6GB of regular (non-ECC) RAM.
There is a total of 15 drives connected, mostly ...
0
votes
0answers
33 views
What should I be looking for in a RAID 5 hard drive? [closed]
I'm looking to build a 12TB home server with 6x2TB disks. I've heard a lot of negative stuff about "green" drives, so what exactly should I be looking for? What specs matter for RAID drives if I want ...
1
vote
1answer
55 views
How much slower is a RAID 1 hard drive compared to no RAID?
How much slower is RAID 1 than no RAID at all? I have heard that RAID 1 provides peace of mind (because of mirroring) but gives slower write (not read) performance.
1
vote
1answer
35 views
Will mdadm --zero-superblock render my Windows drive unbootable?
I have Windows 7 installed on a drive that used to be part of a RAID-1 array. Apparently the drive still contains the old RAID metadata, as when I boot into Ubuntu (which is installed elsewhere), the ...
1
vote
1answer
45 views
Updating SandForce SSD on JMicron controller in AHCI mode
I would like to update my A-Data S599 drive using ASUS P5V-VM DH board. The board have 2 controllers one is VIA and the other is JMicron. Only JMicron supports AHCI mode which is required to update ...
1
vote
1answer
19 views
GRUB only sees first of 2 identically-configured drives in RAID 5 array?
Has anyone ever come across a case where of the two (virtual) disks that are members of the same hardware RAID 5 array (LSI 9750), GRUB can only see the first?
It's a 100% hardware RAID 5, to the ...
1
vote
1answer
31 views
What is a “recovery set” in Intel MSM?
Intel Matrix Storage Manager offers several levels of RAID. Most of these I am familiar with (RAID 0 striping, RAID 1 mirror, RAID 1+0 striped mirror, RAID 5 striping with redundancy). But there's ...
0
votes
0answers
38 views
CentOS Filesystem EXT3-fs read-only randomly
I have 2x1.5tb drives on a 3ware RAID controller in RAID1. Last week our server started having issues noticed by our customers being unable to access their websites, the file system unmounts then ...
0
votes
1answer
796 views
Ubuntu 12.04 - Add RAID 1 Array on existing device?
I read this howto
Ubuntu 10.04 - Add RAID 1 Array?
and
http://ascend4.org/Installing_Raid_1_on_Existing_Ubuntu_Server
but i only have 2 disks.
dev/sdb1 -> where is currently ubuntu 12.04 running
...
2
votes
2answers
260 views
Can't install Windows 7 onto RAID0 SSD
I'm having a very similar problem to the guy here. My setup:
ASROCK extreme 6
Intel Core i7-3770k
16 GB RAM
2x intel 330 120GB SSD
NVIDIA GTX 680
I have confirmed that in the BIOS, the SATA ...
2
votes
1answer
127 views
Using Ubuntu to extract data from an unrecognized hard drive
My Lacie Quadra hard disk MAX external hard drive has stopped being recognized by my PC after a year. I tried everything and ended up opening the casing and extracting the two 1TB hard drives that ...
1
vote
0answers
60 views
Ubuntu raid configuration lost after reboot
I have a JMicron raid controller on the motherboard, and I have a menu in which I can set RAID arrays when the system boots. I've set it to RAID-1 and added my two identical 2TB disks (the OS disk is ...
2
votes
1answer
146 views
8 hard drives, very same model, software RAID0, terrible performance
I have 8 hard drives in my PC, assigned as storage.
Three of them are attached to the mainboard.
Four of them are attached to a controller [ SiL 3114 ]
One of them attached to an another ...
0
votes
0answers
27 views
Measure software RAID I/O performance in Windows 7 / Server 2008
I have a server, where the HDDs are misbehaving. (The I/O performance is well under normal speeds.)
I would like to diagnose the problem. One app I knew for this, is HD Tune. Sad thing is, it shows ...
0
votes
1answer
106 views
Switch back to IDE from RAID
I have a RAID configuration on a P8Z68-V LX motherboard. I want to convert back to IDE mode. Will a Windows-7 system image work as a restore when I go back to IDE mode? Or does this system image ...
2
votes
4answers
143 views
WD Caviar Green: Different RPMs, RAID5 suitable?
Currently I have a 3Ware 9500S-12 with two Caviar Green 1TB disks in RAID1. This isn't enough space, so I want to buy another two disks and run a RAID5. This isn't mission-critical (my media server, ...
0
votes
2answers
48 views
Broken motherboard hardware mirror - getting data from the hdd or from its image
I got a computer (Windows 2003 server) with broken motherboard. The board using an onboard hardware raid and have 2 HDDs in mirror configuration. Trying to find a replacement board will take some ...
2
votes
1answer
269 views
To RAID or not to RAID: SSDs and virtualization
I am approaching that time where my main PC has slowed enough due to Windows rot that I should probably reinstall. Instead of spending a week arm-wrestling, reinstalling and configuring only to find ...
1
vote
1answer
49 views
RAID0 disk recovery?
I've not lost a RAID0 setup but since both drives are used as one, is there anyway possible to even access data on just one drive via a sata cable or will you need both drives in a RAID0 setup to be ...
0
votes
1answer
273 views
Windows won't start after changing SATA controller mode to RAID in BIOS (Intel X79 GA-X79-UD3)
This seems like a question asked a dozen times, so I've already read and tried many solutions. None of them have worked until now.
I installed a fresh Windows 7 x64 on my new computer, on a Gigabyte ...
0
votes
1answer
36 views
FreeBSD, gmirror, hosed disklabel, or something
Okay so, here is my situation:
I had a gmirror instance set up for two 2TB drives, ad4 and ad6.
Yesterday, my system decided to refuse to reboot, complaining about a problem with ad4. The drive ...
1
vote
3answers
160 views
Unable to enter RAID BIOS on X79 chipset
I have got Gigabyte GZ-X79-UD5 motherboard. It is an Intel X79 motherboard with integrated RAID controller and additinal external RAID controller. This is the first time I want to setup RAID in my ...
1
vote
1answer
54 views
Adaptec 3805 does not post with drives connected
I'm experiencing an issue with an Adaptec RAID 3805 controller. When booting the machine, if drives are connected to the card the boot process freezes after the controller starts but before it posts.
...
0
votes
1answer
135 views
Stop Windows 7 from accessing or writing to hard drive unless “told” to by me? (More info inside…)
A confusing question, perhaps, but bear with me.
I have two internal HDDs set up in a RAID0 array which I use as mass storage. I access the drive very infrequently (once a day at most) and so I have ...
1
vote
3answers
113 views
Linux software raid robustness for raid1 vs other raid levels
I have a raid5 running and now also a raid1 that I set up yesterday. Since raid5 calculates parity it should be able to catch silent data corruption on one disk. However for raid1 the disks are just ...
0
votes
0answers
97 views
Computer hangs at boot screen with new RAID card
I am trying to build a new server around a Biostar TH61 motherboard and an Adaptec 6405E RAID controller card.
The machine booted fine from USB before the RAID card and drives were installed. After ...
1
vote
1answer
185 views
Simple Ubuntu Server - Expanding disk space - adding a new drive LVM, RAID0 existing setup - how?
I have a 1TB ext4 partition mounted at / with all my data and Ubuntu 11.04 (natty) installed.
Now this drive is almost full (I used it as a database server for some processing). RAID0 is ok, I can ...
1
vote
0answers
105 views
Computer Slows to crawl after Event Id 3, some issue with Raid Port 0
Recently my computer randomly hangs, crashes and slows down at night, when I click on something when I wake up the computer just doesn't respond and shows the loading thing for my cursor.
Today, I ...
1
vote
1answer
101 views
How do I recover a RAID 1 volume on Mac OS X (10.7)?
I have a Synology NAS that I've set up with RAID 1. The device is set up with two drives, both the same size (i.e. 500 GB each), formatted in ext3, as a RAID 1 volume (i.e. even though the total ...
0
votes
1answer
37 views
How to expand Raid 5 on ICH10 - Gigabyte ex58-ds4?
I was wondering if there is a relatively simple way to expand my HD space.
My setup is 4 x 640 GB drives. Motherboard has 4 ports on 1 controller and 2 ports on another controller, however they can't ...
5
votes
5answers
339 views
Are there any USB flash drives or SD cards which use RAID or redundant storage for additional reliability?
I'm looking to get a fault-tolerant USB flash drive, which saves data to multiple independent locations, whether using RAID or some other means to back up data. Has a product like this ever been ...
0
votes
0answers
30 views
Nvidia MediaSheild RAID unable to remember settings
I have an older system with a EVGA 122-CK-NF68 motherboard. The manual for it is practically useless. I'm trying to configure, literally any sort of RAID at this point, with its MediaShield 9.85 "Apr ...
1
vote
0answers
159 views
Setting up two external USB hard drive as RAID 1
Is this possible in Windows 7? I know I can periodically sync my files using software like SyncBack but I'm looking for mirroring on the fly. Is there a similar method like RAID 1 that can achieve ...
2
votes
2answers
256 views
Linux/OS X dualboot on a MacBook Pro with RAID
I'd like to install Gentoo Linux on my Macbook Pro while keeping my current OS X installation.
I currently have OS X installed on a RAID 0 on two 160GB Intel SSDs and I'd like to create a new ...
1
vote
1answer
174 views
Replacing a non-failing drive in a RAID-0 array
I have a Windows 7 machine booting on a RAID-0 pair of 500GB disks, controlled by an ICH9R. One of those was indicating an end-To-end SMART failure, so I added a spare disk as a temporary workaround, ...
1
vote
2answers
717 views
Switching BIOS SATA RAID/AHCI setting causes BSOD at Windows Start - Why?
I just changed my disk setup from:
1 SATA HDD Primary OS Disk
2x SATA HDD Backup Disks in RAID 1
TO:
1 SATA SSD Primary OS Disk
1 SATA HDD Backup Disk
[No RAID]
Everything worked great, no ...
0
votes
0answers
74 views
How to recover software raid5 array where all disks failed?
I marked all raid5 disks as --fail. I need to recover raid5 array. I tried mdadm /dev/md0 --assemble -f but it gave me an error: mdadm: device /dev/md0 already active - cannot assemble it. I tried to ...
0
votes
1answer
134 views
RAID 1 - What happens if I disconnect both disks?
I'm trying to install windows on a new SSD, and I'm having problems getting it to work correctly. I've read that it's good to disconnect all other drives and do a format and clean install.
Only ...
0
votes
0answers
157 views
How to stop RAID5 array while it is shown to be busy?
I have a raid5 array and need to stop it, but while trying to stop it getting error.
# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : ...
