2
votes
1answer
80 views

Removing all disks from RAID5 and adding new disk for access/data destruction - will RAID be preserved?

We have a RAID5 array and limited resources. It has been suggested, for data destruction of a SAS drive with a bad sector, to remove ALL drives from the RAID5 array, and then place this 1 drive into ...
14
votes
8answers
2k views

Do snapshots + RAID count as a good on-site backup solution?

The two main reasons I can think of for taking backups seems to be taken care of when I use both snapshots and RAID together with btrfs. (By RAID here, I mean RAID1 or 10) Accidental deletion of ...
0
votes
2answers
80 views

Build RAID 1 array (non-boot), apparently all data is gone?

The computer that this is occurring in, has a 40GB boot drive (Debian) and two non-boot drives. I have two identical 1.5TB drives (one partition on each), and one of them had data on it (other was ...
1
vote
3answers
147 views

Small office backups, small NAS (RAID) vs single disk

Assume a small office situation, 5-10 workstations (PCs), and a Windows server hosting a network share. The Windows server is in a 3+1 RAID 5. I am debating with myself over a backup solution and I ...
3
votes
3answers
451 views

What is the best way to copy 9TB of data to multiple external drives, sequentially?

The data is currently stored in a 9TB RAID array, with many users having many files and directories. We'd like to back it up to five 2TB external hard drives, but since we only have one free USB port, ...
0
votes
1answer
346 views

Mirroring iSCSI target to slower drive, asynchronous RAID or block-level replication?

I'm planning on setting up a test iSCSI export on my NAS which will be used by a KVM virtualisation host to store all guest volumes and data. My NAS box is a self-build running CentOS. The device ...
1
vote
2answers
376 views

Creating a raid on MSA60, will it check for bad disks?

I'm recreating the raid on a old msa60. Would it check for bad disks when I create it? It is three msa60 enclosure with 12bay and 1TB each. I need around 24TB usable storage, what would the ideal raid ...
1
vote
0answers
32 views

Backup RAID1 and RAID10 before upgrade

I have two machines, one with mdadm RAID 1 on root partition and one with mdadm RAID 10 on root partition with 4 drives. Ubuntu machines, now I need to upgrade these. If something goes wrong I need a ...
0
votes
2answers
433 views

How to make a complete offline backup of my HP Proliant server?

I'm about to do a migration from Raid-5 to Raid-10 and add some hard drives. But before I do that I think it's good to have a complete offline backup. So I have a 1 TB external hard drive ready to put ...
2
votes
3answers
119 views

Have a server, need to figure out a method of backup

My company has an older Dell 2650 server running ArchLinux x64: http://www.dell.com/downloads/global/products/pedge/en/2650_specs.pdf (2 x 2.4GHz Intel Xeon w/around 3287 RAM according to "free -m") ...
2
votes
2answers
219 views

16tb raid6 + lvm, to partition or not to partition?

So I have a 16tb raid6 on one of a new batch of machines I am setting up. I will be using LVM on top of this and am wondering if there are any compelling reasons to break the raid up into partitions ...
0
votes
2answers
225 views

Suggestions for splitting server roles amongst Hyper-V virtual servers / RAID6 or RAID10? / AppAssure

We have 2 Hyper-V hosts at present running 1 virtual server that was converted from a physical box running all roles. My plan is to split the roles over various virtual machines, upgrading to the ...
9
votes
2answers
845 views

Areca 1280ml RAID6 volume set failed

Today we hit some kind of worst case scenario and are open to any kind of good ideas. Here is our problem: We are using several dedicated storage servers to host our virtual machines. Before I ...
0
votes
2answers
2k views

How to backup a linux server running a software raid

I would like to backup a production server running ubuntu 10.04 LTS on a software raid. In order to to that I have rebooted into a rescue system which is running in RAM. df -h on ubuntu looks like ...
0
votes
1answer
335 views

Backup Ubuntu server with RAID

I saw similar questions, but this a bit different. Namely, I am trying to make a backup of Ubuntu server with RAID on it. I want to backup complete configuration since that I recently had a problem ...
1
vote
2answers
84 views

Optimal RAID setup for 2 low-workload modelling servers? [duplicate]

Possible Duplicate: What are the different widely used RAID levels and when should I consider them? My team at work uses a pair of servers each with a 2.7TB RAID 10 array composed of 8x ...
1
vote
1answer
181 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 ...
1
vote
2answers
167 views

Backup Server RAID Partition

Recently bought a server with 16 1TB disks. We're going to use this for a backup to disk solution. Is there any reason why I'd want to partition the array in any specific manner? I was basically just ...
1
vote
1answer
57 views

A redundant standalone backup solution for a small amont of information

Currently a software vendor suggests storing backups of their software's database (that includes confidential and private information) on flash drives on a regular basis. Having had my share of pain ...
6
votes
8answers
2k views

24TB RAID 6 configuration

I am in charge of a new website in a niche industry that stores lots of data (10+ TB per client, growing to 2 or 3 clients soon). We are considering ordering about $5000 worth of 3TB drives (10 in a ...
0
votes
4answers
13k views

How can I un-mark a partition as active?

Overview: I use a backup storage enclosure with 6 backup drives incrementally backup up and taken off-site. One day I noticed that the backup process was failing. I logged onto the server that is ...
0
votes
1answer
211 views

backuppc similar software?

I have been using backuppc backup software and really like it, but due to it's use of hard links (and possible other issues?) it will only run under linux and will not work with certain file systems, ...
2
votes
1answer
286 views

SQL Server on EC2: What way do i set up the EBS

Good morning. We have a service with a SQL box on Amazon EC2 and, as suggested on this question, we are using EBS to store the data... the problem is, What is the best way to setup the storage? At ...
1
vote
1answer
419 views

LVM over Raid 1 with different size disks in Ubuntu

I'm currently building a backup server for a few of the machines in the office. I plan to run ubuntu 10.04 LTS on it. My current setup is: 2 x 1TB disks in software RAID 1 configuration 2 x 2TB ...
1
vote
2answers
146 views

How does RAID compare to secure data against replication?

I am currently trying to figure out the best setup to secure my DB data, but I also have a tight budget. My first (and obvious) solution would be to use replication. But I wonder, apart from problems ...
4
votes
3answers
4k views

What purpose does the battery serve on a battery-backed caching RAID controller if the server is on an uninterruptible power supply?

Is the battery redundant if the server is on a properly-sized UPS? There is an option to force write-back mode and I want to understand the risk. It is my understanding that it helps against power ...
0
votes
2answers
144 views

backup storage server

Is it possible to have a machine (used for storage) with the following: Lets say all the HDD's are 73GB SATA drives. 1 HDD for the OS. 2 HDD for the storage (RAID 5, hardware) 1 Hotswap HDD which ...
10
votes
7answers
2k views

How do you backup a storage server?

I'm looking at implementing a very large storage server to be used as live NAS for several other servers (all Linux-based). By very large, I mean between 4TB and 20TB usable space (although it's ...
1
vote
3answers
126 views

RAID on a low-traffic server?

My company is buying a couple servers. I don't have a sysadmin background and neither does anyone at my company but I'm the "computer guy" so it falls to me to spec them out. We were given the option ...
0
votes
3answers
231 views

Which Raid to store SQL backup files?

Following is my current SQL Server raid configuration: Raid1 with log files ~ 500GB Raid10 with data files ~ 1TB I would like to keep 3 day worth of daily full backup and hourly transaction log ...
3
votes
2answers
203 views

What is RAID5 + Hotspare?

Does this mean setting aside one more disk as a hotspare than you actually need for RAID5?
0
votes
1answer
576 views

External Storage for 2TB of backups and 4TB of data RAID level? HW vs Software?

I have a Mac Mini set up as a media center/file server. Currently I just have a hodgepodge mess of external drives for storage. I'm maxed out, and I have some new laptops on the way with much larger ...
4
votes
1answer
527 views

How to back up RAID (PERC) configurations?

At my site we have several RAID storage servers, mostly using Dell PERC cards. I was wondering if anyone is aware of a way to take automated backups of the PERC configuration? The reason I ask is that ...
0
votes
1answer
714 views

3ware raid controller splits raid array into two peices. what do do?

I have a server with a 3Ware 9650SE 8 port controller. I had an 8 drive raid 5 array with a hot spare drive as part of the array of roughly 3.87 TB in size. When I signed into the server today, I ...
1
vote
3answers
756 views

I Want an Affordable Snapshot-Saving Crypto-Backupping RAID NAS

This is what I am looking for: A NAS storage/backup solution (hardware/software combo) which has RAID for redundancy full-disk encryption for security snapshot capabilities (multiple/regular ...
2
votes
4answers
736 views

Is raid necessary for a modest server?

This is a bit of a subjective question, but I want to run it by everyone here: I've been thinking of building a basic linux server that would consist of one or more internal hard drives and then ...
0
votes
3answers
291 views

Backup solution needed for file server

I run a small IT group and am using a Dell Precision T3400 workstation as a shared file system. I'm also running a Quickbooks multi-user server on the same machine. Two weeks ago, my only hard drive ...
15
votes
12answers
6k views

Should a backup server use RAID?

I was asked to set up a new backup server using Symantec Backup Exec that stores to hard disk instead of tape, because the backup size is outgrowing tape capacity. I was wondering does it really ...
1
vote
3answers
144 views

RAID or batch copy on scheduler?

Is it better to setup a RAID array or a batch copy command on a scheduler? My needs are simple - to backup my important files (some source code, financial data, etc.) on my home network nightly to a ...
54
votes
13answers
23k views

Why is RAID not a backup?

When someone mentions RAID in a conversation about backups, invariably someone declares that "RAID is not a backup". Sure, for striping, that's true. But whats the difference between redundancy and a ...