The raid tag has no wiki summary.
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3answers
75 views
Lost 6TB NTFS partition
I have a 6TB raid array that was formatted as NTFS but has disappeared. (note that this is hardware raid, not md)
When I created it, windows wouldn't let me create > 2tb. So I created it on a Linux ...
1
vote
1answer
27 views
Delete RAID 1 from Debian
i've Debian installed RAID 1 2x 160GB HD, i want to delete it but i'm totally noob in linux, i don't want to install fresh image and start from scratch again, i cannot do backup because i've nearly ...
1
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4answers
78 views
Is my server in RAID mode at all?
I am out of means to find out if my server is using RAID or not. If yes, which mode? The server is connected with the disk array box. So I am pretty sure that it's supposed to use RAID. Can it not?
...
-1
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1answer
52 views
Database server is better to have SAS than SATA, also preferable RAID1?
I want to know if it's better to hast DB server by SAS hard disk than SATA hard disk?
And it's also better to use RAID1.
I don't know much about RAID.
If the server is RAID6 default. Can I change ...
0
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0answers
7 views
How to quantify TEMPDB usage in relation to other databases hosted on same hardware? [migrated]
Working on a project to decide if configuration 1 or 2 is the best way to organise disks for my SAN:
Config1 (sql 2008)
8 disks @ raid 10 data
2 disks @ raid 1 logs
2 disks @ raid 1 tempdb
2 disks @ ...
0
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2answers
32 views
recovering data from raid1 component disk
Need to recover data from raid1 component disk using ubuntu live usb disk. The existing software raid was broken. After many attempts, I removed degraded raid setup from BIOS but ubuntu live could not ...
0
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1answer
59 views
Problems with degraded RAID arrays
My Ubuntu backup server was recently upgraded in storage space to a RAID 10 array... now it consists of 8T of raw drive space which was before 2T of space.
But I have been having trouble when it ...
1
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0answers
33 views
x3650 IBM ServeRAID 8k
I have 6 disks into RAID5 array, I bought 2 new disks and I will add to the existing array. I try with IBM ServeRAID 8k utility but i can find the option for append disk into an array.
i have CentOS ...
1
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2answers
47 views
Optimal RAID setup for 2 low-workload modelling servers?
My team at work uses a pair of servers each with a 2.7TB RAID 10 array composed of 8x 750GB hard drives. They are set up in different physical locations; one is kept purely as a disaster recovery / ...
2
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0answers
21 views
mdadm LBA mapping
I am trying to write a script similar to mdtrim (https://github.com/Cyberax/mdtrim) for a raid 0 software raid through mdadm. The mdtrim is for raid 1 only at the moment, and it works by writing a ...
0
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2answers
50 views
Software RAID on Debian 6 VM
I was thinking of setting up a software RAID on my VMs running Debian OS 6.
I found a guide:
"http://tldp.org/HOWTO/Software-RAID-HOWTO-5.html"
, but it seems like my system lacks a "/proc/mdstat" ...
4
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1answer
33 views
Debian installation on software RAID (lilo.conf configuration)
Debian installation program has created lilo.conf:
boot=/dev/md1
root=/dev/md1
raid-extra-boot=mbr-only
But when i configure lilo i usually put these lines
disk=/dev/md1
sectors=63
heads=255
...
2
votes
1answer
34 views
vsphere 5 - what is the best way to partition local disks?
WE have a Dell R815 with 6x900GB SAS disks and a perc h700 controller.
We want to use it as a dedicated bare metal vsphere server (stand alone).
We have no idea what the best way to partition the ...
2
votes
0answers
37 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 ...
4
votes
1answer
54 views
Write-Back and Write-Through for SSDs
Are there any special implications of Write-Back vs Write-Through that should be considered when creating an SSD raid array?
0
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0answers
15 views
Fedora (Linux) server has problems with acessing raid storage after a while
My Fedora server has problems to access external raid storage (StorCase IFS U320/SATA-R) when there's written data to it (via rdiff-backup). After a hour or so, it simply stops responding and always ...
2
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4answers
98 views
Hardware Raid 10 For Video Serving
I just ordered a new server which will be used to serve mp4 video files ranging from 10MB up to 90MB using nginx (with pseudo-streaming).
This server has dual opteron 6128, 64GB of RAM.
What I would ...
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0answers
71 views
raid storage device with 8+ hdd's [closed]
I am looking for a raid storage device that can hold minimum 8 hdd's with ZFS RaidZ to store the data redundant without the need of drives of the same size etc. The software is not a problem, I just ...
1
vote
1answer
71 views
Where did the free space go?
I have installed CentOS 5.7 64 Bits in my server which has 4x300 GB SAS drives on hardware RAID 10. At the installation, I chose default partitions.
Here are the commands output:
[root@server ~]# ...
0
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0answers
25 views
raid 0 configuration with existing data
suppose I have SATA 4 Port RAID 0 Card with 2 disks initially, would I be able to add more disks later to the raid card without formatting existing data?
background/motivation:
I have 3TB of mysql ...
-1
votes
3answers
77 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 ...
2
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2answers
69 views
Can I increase my Dell RAID 1 from 250GB to 500GB just by plugging in larger drives?
I have a Dell PowerEdge R300 with a Dell SAS 6/iR Internal Controller RAID PCIe and two 250GB SATA HDDs in RAID1 configuration. One of the HDDs has died so I want to swap it out for another. At the ...
-1
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0answers
64 views
Two servers, backup on storage [closed]
I have two servers, and I need to backup data on storage. Data should be synchronized. I'm looking for best hardware and software solution for my problem.
Thanks a lot
0
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4answers
79 views
DRBD or similiar RAID over net on slow/limited networks
I am looking for ways to create some kind of file replication without losing too much performance on file operations. A real RAID is not an option due to non-technical constraints.
As far as I ...
0
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1answer
48 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
votes
2answers
109 views
How reliable is CentOS 5.x RAID 1? I'm considering the SuperMicro MicroCloud product which has everything i need except for hardware RAID
The SuperMicro 3U blade server looks very promising - MicroCloud!
If i configure RAID 1 on the 2 SATA drives in each of the blades, how would that work out in terms of reliability?
Compared to 8 1U ...
0
votes
1answer
33 views
Setting up separate raid5 on Debian
I want to set up a NAS/share with SAMBA on Debian(squeeze) with Webmin, and i want a setup like this:
2x40GB(IDE), in RAID1 for distro/debian.
4x40gb(SATA), in RAID5 for storage/NAS
This is just ...
2
votes
2answers
43 views
Raid controller for an old server [closed]
I'm trying to find a PCI Raid controller for an old machine that only has 64bit/33MHz PCI slots.
It's now being used as a file server and uses a couple of old PATA drives with Windows Server ...
0
votes
1answer
21 views
Unable to knock to Areca ARC-6020
Several months ago we got an RAID Areca ARC 6020, without any cable and instruction how to setup that. This device is real dinosaur but we would like to make it workable as storage array in our team.
...
2
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0answers
124 views
HP SmartArray P400: How to repair failed logical drive?
I have a HP Server with SmartArray P400 controller (incl. 256 MB Cache/Battery Backup) with a logicaldrive with replaced failed physicaldrive that does not rebuild.
This is how it looked when I ...
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2answers
49 views
Is it possible to add disks to an existing RAID 5 array? [closed]
Suppose I have a RAID 5 array consisting of 4 disks. If I buy two new disks later, can I add them non-destructively to the existing RAID 5 array?
It could be a hardware RAID controller or Windows ...
-2
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1answer
35 views
how to know raid 5 disk failed, server is in remote
the server is remote, cannot see the disk's LED light.
The Raid Controller is motherboard integrated. 6 disks build a Raid 5. Windows 2003 Server system.
so if one disk failed, how the admin get ...
0
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0answers
94 views
Assembling a JBOD NAS raid (2 drives)
I had a NAS from Cavalry (CAND series). It consisted basically two 1TB drives in a JBOD array.
The enclosure/controller has gone bad but I am fairly sure the hard drives themselves are healthy.
I ...
1
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1answer
113 views
1TB Seagate Barracuda ST31000528AS - Unexpected “Offline uncorrectable sectors”
I bought a 1TB Seagate Barracuda 7200.12 - ST31000528AS drive about 18 months ago because it had a 5-year warranty, and used it alongside a Samsung Spinpoint under Ubuntu Server as one half of a ...
0
votes
1answer
51 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 ...
0
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0answers
43 views
Hardware Raid or software for Dell Workstation? [migrated]
I am buying a new Dell T-7500 workstation. My application is stock market trading.
After a Hard Disk crash once, I learned that I need an extra hard disk always ready in case one fails.
Dell is ...
0
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3answers
106 views
How to mount Solaris Hard Drive?
I have received a HDD. It has single partition with id 42 SFS covering the whole partition. But I am reliably told that it came from Sun Fire XXXX (where XXXX is 15 hundred or thousand or something ...
1
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2answers
54 views
Adding nearline SAS disks to a controller with SAS disks
I have a Dell Poweredge 840 server that currently has a pair of hot swappable 146Gb SAS disks attached to a SAS 5IR controller, configured as RAID 1.
I have two spare slots to add two add more ...
1
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1answer
70 views
Server RAID 1 Cannot rebuilt, cannot boot into Windows
My office's server has failed recently after a power outage (we have no UPS).
It turned out that it will not even boot into Windows (not even safe mode). The server was running in RAID 1 consisting a ...
2
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0answers
61 views
High traffic windows server configuration [closed]
I'm running a large website with 400.000+ visitors a day and currently setting up a new server environment (one web, and one db server).
I would love to hear how Jeff and Joel has setup their Web and ...
0
votes
1answer
153 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 ...
4
votes
3answers
117 views
Do I lose RAID array if I switch RAID controller
If I have a RAID array and I switch out the controller to a newer controller, does this destroy the array?
E.g. I have 6 drives as 1 RAID0 array. If I upgrade the controller to a different one, but ...
1
vote
1answer
38 views
“hot swapping” linux md raid1 - does re-mounting file-system temporarily read-only enable safe disconnection?
There's is an ext3 filesystem on top of Linux md raid1, array consists of two hard drives. Various services, including databases run on and write to it.
Let's say for argument's sake that to minimize ...
2
votes
2answers
55 views
Are there any downside of creating LVM using raided device?
I want to use the performance of RAID-0 and flexibility of LVM for managing storage.
I have created RAID-0 using two disk of equal size and then created a PV and
included in VG. Then I have created ...
2
votes
1answer
47 views
RAID 10 or RAID 1 x 2 for Hyper-V with AD, EXCHANGE on Windows 2008 R2
We have 2 servers which have 6 SATA 7200 disks inside (each). We want to configure both servers so that they will have Window Server 2008 R2 Enterprise installed and on top of it Exchange 2010 x2 (for ...
4
votes
4answers
131 views
SAS Expanders for DIY JBOD Arrays
I am researching making a DIY SAS array much like the Dell MD1000. My understanding is that these devices do not contain a RAID controller, instead they present all the drives on in SAS domain to the ...
5
votes
1answer
60 views
Use cases for “mdadm --create” vs. “mdadm --build”?
From the mdadm man page, --build section:
This usage is similar to --create. The difference is that it creates a legacy array without a superblock.
^^ So no superblock with --build. 10-4. ...
2
votes
3answers
92 views
raid on commodity / desktop disks
Is it safe to setup raid 10 with 6 standard desktop drives? So just regular 7200 rpm sata 3 disks? I understand that these disks might fail sooner than enterprise storage disks, but whatother things ...
0
votes
1answer
25 views
changing the mount point of software raid enabled disk
Basically what I want to achieve is the following.
I have two disks and have enabled software raid on these. The df shows the following:
Filesystem Size Used Avail Use% Mounted on
...
0
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1answer
81 views
HP Proliant DL100G2 cant quick restore from recovery disc on RAID 5 array
When Attempting to Restore Factory Settings (Window Server 2003) from recovery disc, on to a RAID 5 Configuration of 3 discs (note 4th disk died and has been remove and array recreated), i get the ...
