The raid tag has no wiki summary.
1
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0answers
24 views
lvm/xfs does not utilize full raid device
My older 2 CPU server (32-bit LV Xeon, centos 5) drives a raid6 array. Since I grew it from 7x2T to 8x2T (I had to CD boot a "more modern" fedora to even do the 82-hour growing, but that's another ...
-4
votes
1answer
57 views
How to setup a multi-server network for a web application [closed]
I am experienced with development, but not with servers and networking. I am developing an application and stability is critical. What I am wondering is how my network should be structured and how it ...
5
votes
2answers
94 views
Does adding more drives to a RAID 10 Array increase performance?
I'd like to know if I were to add additional drives to an existing Raid 10 if this would increase the speed of the entire array?
-3
votes
1answer
43 views
The two devices which facilitate storage over a network [closed]
I have been ask for specifically 'THE TWO' devices which facilitate storage over a network, powerful in addressing, failures and redundancy.
Could anyone figure out which devices these are? It seems ...
2
votes
1answer
43 views
How to boot GRUB2 so it mounts “root” on a different drive (remote server without kvm switch)
Summary:
I created a copy of the root file system on a raid array (with one disk on it), and im trying to get the system to boot off that newly copied drive.
Background:
2 disks of same size in ...
1
vote
2answers
35 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 ...
1
vote
2answers
30 views
Raid array on partition bleeds through to block device
EDIT: It appears that this might be an inherent issue with the .9 superblock version. Figures that I would only be able to find these links after I posted here.
...
2
votes
1answer
43 views
raid with replication
We are planning to buy two servers which will going to host an SQL database(PostgreSQL). The second server will work as a live replication of the first database server (hot standby). The question I'm ...
1
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0answers
40 views
RAID 1 on 2 external HDDs [migrated]
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 ...
2
votes
2answers
65 views
Linux-on-Linux KVM: Which filesystem should i use for guest and host?
I'm in the process on playing around with kvm and setting up a linux on a linux-server, so i can
reboot the (guest)server
encrypt the rootFS of the guest without having to do initramfs-tricks to get ...
-1
votes
0answers
29 views
One Server HDD solid Red. No listed Errors
I recently received an older rack server on which to try some projects on. I'm rather inexperienced with server hardware at this point. I was trying to set up a RAID 1 configuration between two SCSI ...
-2
votes
2answers
71 views
External RAID enclosure
I need a solution for file write speeds around 200MB per second.
Data redundancy is not necessary, therefore RAID 0 will probably be used.
Finally, data will be streaming for potentially hours, so ...
0
votes
0answers
24 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 ...
2
votes
3answers
69 views
Server RAID and Partition Config for Small SQL Environment
I've got 5 databases that run on separate servers using SQL Express. Some of these include a Citrix Datastore, Citrix Edgesite Server, an AV db, Time and Billing App, and a document management ...
0
votes
2answers
37 views
hp sb40c and hp bl460c storage
I have an HP ProLiant BL460c partnered with an HP SB40c blade server. The storage controller for the BL460c is HP Smart Array E200 while the SB40c's controller is P400. In my configuration, the ...
2
votes
1answer
41 views
Replace a 3.5" hard drive in a RAID 5 array with an SSD?
With a 3ware 9650SE on Debian 6, can I replace a drive in a RAID 5 array with an SSD? The goal would be to eventually replace each 3.5" hard drive in the array with SSDs. Is there anything I should ...
1
vote
0answers
61 views
LSI RAID monitor reports “Consistency Check inconsistency logging disabled”
I have a server with a LSI MegaRAID 9261-8i controller. Recently I started getting alerts like this one:
Controller ID: 1 Consistency Check inconsistency logging disabled, too many
...
-1
votes
4answers
120 views
RAID0 vs Separate Disks for Heavy Read Perfomance
I was wondering if there will be any noticeable difference in read and write performance (99% read, 1% write) between the 2 approaches. The server would be pushing 1-3Gbit.
The stripe size is 2MB ...
0
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0answers
16 views
wrong raid config
i'm assembled two disk as software raid-1 last month.
But im not sure is it normal, statistics show sdb as primary disk and
mdstat data is different than the other servers data.
SS from mdstat
...
-4
votes
2answers
67 views
Why do you have to rebuild RAID-1? [closed]
If RAID-1 is an exact mirror copy, why must you do a "rebuild" on a RAID-1 drive after the primary drive fails? Will the system suffer from any downtime if the primary drive fails?
Are there any ...
0
votes
2answers
36 views
MegaRAID Storage Manager Error 1920 “Service MRMonitor (MegaMonitorSrv) failed to start.” on Windows Server 2003 R2 x64
I'm trying to install the MegaRAID Storage Manager 8.10 provided by SUPERMICRO, but I keep getting an error 1920 that "Service MRMonitor (MegaMonitorSrv) failed to start. Verify that you have ...
1
vote
1answer
24 views
High load of resources by software RAID1 in Debian 6
I have a server with Debian 6 and software RAID1. There is a problem: every few seconds the jbd2/md2-8 process loads all the HDD IO. It was detected by iotop. And for the md2_raid1 process 99% of IO ...
0
votes
2answers
48 views
New to Windows Server 2008, can i change system raid
I have bought Windows Server 2008, but I am not sure if I should install it now or wait until I get my third system disc.
I currently have 2x 32gb SSDs. I am going to buy another disc, because the ...
4
votes
1answer
104 views
RAID-1 drive failure - will the missing data be “rebuilt”?
We are a small company with an old Dell PowerEdge 830 with a CERC 6ch raid controller. Server is our file server, domain controller (Windows Server 2003), MySQL server, etc. We have a sysadmin that ...
-2
votes
1answer
45 views
IBM ServeRAID 5i Error on boot
I am seeing this screen when I boot up:
It says error 2500.
I can't find any information on this. Where can I go to get more information on this problem?
0
votes
0answers
58 views
3ware 9650SE-24M8 INOPERABLE data recovery
I have a raid6 array with 16 hdds. Two harddrives had failed (device error), but when I went to replace them, I pulled out one wrong disk!
Now the raid array is INOPERABLE. Is there any way to ...
1
vote
1answer
140 views
HP ProLiant DL380 G4 RAID conversion?
Proliant DL380-G4 with the onboard SmartArray 6i controller.
Raid 1+0 set consisting of 2x 72 G and 2x 300 G disks (the bigger disks got added later).
Effective capacity about 140 GB and, of course, ...
-1
votes
0answers
37 views
How do I narrow down on my disk requirement? [closed]
My application has a requirement to write 10 KBPS to disk for about an hour (about a million records). What other factors should I consider to converge on a spec?
0
votes
1answer
27 views
BI Server raid/array configuration
I'm currently maintaining a BI server that crunches numbers for reports etc. It is running on a HP ProLiant 360DL G5 32gb ram with a Smart Array p800 connected to a MSA Unit with 750 GB in RAID 1+0 ...
4
votes
1answer
56 views
VERY peculiar permission masks, UIDs, GIDs and file names in Linux
I've just booted to find my software RAID 5 in Ubuntu not mounting. When trying to mount it gave me an NFS error (which was confusing). I ran fsck on /dev/md0 and my screen scrolled with fixes for ...
0
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0answers
43 views
Best way to change disks with Intel Rapid Storage Technology 10.8.0.1068; only one disk in current array
I have a raid 1 array which is currently missing one disk. I want to change the system over to two completely new disks. I currently have Intel Rapid Storage Technology 10.8.0.1068 installed. What is ...
4
votes
1answer
476 views
Ubuntu server, gpt partition table, mdadm, grub boot fail
Basic working system details:
I used the Ubuntu 12.04 server CD to install a server.
I have 4 disks. On all disks I did the following, similar to this howto :
created a 2GB swap partition
created ...
18
votes
1answer
187 views
When using software RAID and LVM on Linux, which IO scheduler and readahead settings are honored?
In the case of multiple layers (physical drives -> md -> dm -> lvm), how do the schedulers, readahead settings, and other disk settings interact?
Imagine you have several disks (/dev/sda - /dev/sdd) ...
1
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0answers
105 views
8 hard drives, very same model, software RAID0, terrible performance [migrated]
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 ...
1
vote
1answer
50 views
Upgrading Intel Matrix Storage Manager to Intel Rapid Storage Technology, windows 2003
I would like to upgrade the Intel Matrix Storage Manager software on a windows 2003 std box to the latest version of Intel Rapid Storage Technology which my mobo (ASUS P6X58D-E) supports.
Can someone ...
0
votes
1answer
76 views
Intel Matrix Storage Manager RAID rebuild cycles over and over
I am working on a machine that has Intel Matrix Storage Manager on it. It says it needs to rebuild the RAID1 array, but it seems to get to about 35% and then starts the rebuild over again at 0%. ...
1
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0answers
24 views
WD Caviar Green: Different RPMs, RAID5 suitable? [migrated]
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, ...
1
vote
2answers
54 views
Removed a Disk to Test RAID 1. Now how can I re-introduce it to Windows 7 without re-synching everything?
I just removed a disk to test our RAID 1 setup was working, and now I want to reintroduce that Disk, and have it continue living as a RAID1.
However, when I go into Disk Management the former RAID1 ...
1
vote
1answer
50 views
why does windows 2008 resync software RAID after a power outage?
i had a power outage. before the outage my RAID 5 (4 SATA drives) was fully synced. perhaps I was doing some trivial writes during the poweroutage, but afterwards windows decided it has to do a ...
2
votes
4answers
106 views
Optimizing RAID 5 for BackupPC use (small random reads)
I am running a BackupPC server with a hardware RAID 5 for the main storage of the backups. Since the machine was created on a tiny budget, the controller is a 3Ware 9500S-4LP for the PCI port and the ...
0
votes
0answers
120 views
Can't mount logical volume, RAID/MD/LVM problems
I have a file server with 48 2TB HDDs split across 2x 3ware 9650SE-24M8 RAID cards. Both cards have 24 drives in RAID 1+0. MD softraid is setup in raid 0 with the two RAID 1+0s making RAID 100. LVM2 ...
-1
votes
0answers
64 views
MegaCli Raid Levels
Running /opt/MegaCli -LDPDInfo -aall, I get:
RAID Level : Primary-1, Secondary-3, RAID Level Qualifier-0
I am assuming this indicate nested RAID1 and RAID3. There are six physical disks ...
2
votes
2answers
108 views
Moving RAID 1 disks between servers
I'm replacing a Dell PowerEdge 2950 server (PERC 6/i) with a new PowerEdge R510 (PERC H700). The existing system has its system on a pair disks in RAID1. My intention is to re-use these disks on the ...
1
vote
0answers
44 views
Adding SSD boot disk to machine running RAID 10
I have a server (dev rig) that runs Windows 2008 R2 and boots from a RAID 10 setup.
Now I want to add an SSD disk that will contain Windows 7 (could be dual boot, but dont plan on salvaging the ...
0
votes
2answers
57 views
Poweredge 2850: replace disk with larger in RAID?
Is it possible / rational to replace a failed disk in a PE2850 (win2003) RAID-5 array with a larger size? Im not looking to expand the array - just to replace a failed disk with one that I have in ...
0
votes
1answer
40 views
OpenManage vs Reality: where are my disks?
Im getting a 'degraded disk' error from an old PE 2850. I see the orange light blinking on the array so I know where the problem is. The system is running win2003 x64.
Im running OpenManage also and ...
0
votes
2answers
92 views
PEBKAC failure on Raid 1 array (striped) installation
Some time ago, I attempted to upgrade a RAID 1 array to a RAID 10 array by adding two more disks to the original two that lived in an IBM xSeries 346. In the RAID card's bios, I told it to grow the ...
3
votes
1answer
68 views
Prior to risky uninstall, pull one disk of raid 1 as a fallback?
I have to deal with a windows 2003 std server that has not been taken care of for years. It has an old, unsupported version of McAfee anti virus enterprise installed on it that is intermittently going ...
0
votes
3answers
134 views
How do you mount a RAID1 disk as a normal disk
I'd like to copy data off a disk (EXT2) that's part of a RAID1 mirror (Linux software RAID).
When I try to do a manual mount of the disk is complains that it's part of an array.
Is there a way to ...
0
votes
1answer
88 views
Is it possible to add a disk to a RAID5 controller without rebooting? [closed]
I know tw_cli can migrate the RAID5 to an added additional disk, but the capacity will not grow until the machine is rebooted. So is it possible to grow a RAID5 array with no downtime? What is a raid ...
