Tagged Questions

-1
votes
3answers
95 views

Raid 0, Raid 1, Raid 5, Raid6, Raid 10 Read/Write performance? [duplicate]

Assume a single disk has a baseline of 1W & 1R performance, how does the different RAID configurations behave? My initial guess: Raid 0: 2W 2R Raid 1: 1W 2R Raid 5: ? ? Raid 6: ? ? Raid 10: ...
1
vote
2answers
124 views

DegradedArray event on /dev/md1

This morning I got this message: This is an automatically generated mail message from mdadm running on A DegradedArray event had been detected on md device /dev/md1. Faithfully yours, etc. P.S. ...
0
votes
1answer
375 views

Where is my new hard disk Citrix Xen Center

I'm trying to create a new storage repository on a server that already has 2 old hard disks, set up with hardware RAID 1. It's my first time doing this in Xen Server environment so I wanna be extra ...
1
vote
3answers
370 views

What would happen if I did a raid on a SSD and an HDD?

I am building another server (cheap) and would like to go with a 256GB SSD drive for my boot and data. This will be enough for my needs, but just having one SSD scares me for a couple of reasons. If ...
1
vote
1answer
59 views

Does the order of SAS drive matter when installing old drives?

I have an old IBM server with 12 hard drive bays, 4 of which are used (SAS 72GB drives), and configured in a RAID 1 array. The server will be sent away for repairs, when it comes back, do I need to ...
1
vote
2answers
259 views

SSD redundancy via HDD

Is there a way to guarantee redundancy to an SSD using an HDD? Raid 1 is the best choice to guarantee redundancy in HDDs, but SSDs are too expensive to guarantee redundancy via RAID. If I was to ...
1
vote
1answer
152 views

Harddrive / Raid1 issues

I'm having problems with the hard-drives in my root-server. It's running with 2 hdds in a software Raid1. After having performance issues with a large MySQL DB, that writes via O_DIRECT and ...
2
votes
2answers
304 views

RAID1 Broken Mirroring

I'm having a little server with Windows Small Business Server 2003. I'm using RAID1, via a HighPoint Rocket RAID 1640 RAID-card, using two harddrives. This week the server alarmed, and durig reboot I ...
0
votes
1answer
1k views

Iomega NAS ix2-200 RAID mode questions?

I am looking forward to buy a NAS. Now I have found one which looks quiet interesting, it's the "Iomega StorCenter NAS ix2-200 4.0 TB". I will use it to store Mac OS X TimeMachine Backups and as a ...
0
votes
4answers
1k views

How to get at the extra drive space when upgrading a set of RAID 1 hard drives

My current configuration is a Dell PowerEdge SC440 server with 2 SATA 160 GB drives in RAID 1 configuration. I bought two 1 TB drives and I want to replace the 160 GB with these 1 TB drives. There ...
4
votes
3answers
701 views

Write-read errors, Raid1 recovery?

This might sound stupid, but I'm supposed to ask any question here, as long as it is related. So here. I have RAID 1 on the server that is officially soon to be dead. After a chkdsk, the files are ...