RAID solution with hardware assistance. RAID parity calculations can be performed by either the main CPU, or by a separate processor on the RAID controller card.
2
votes
1answer
31 views
Migrating RAID6 array from HP SmartArray P600 to LSI MegaRAID SAS 8888ELP
My customer has an external RAID6 array (8x 1TB in HP MSA60 enclosure) attached to HP SmartArray P600 controller. They have now decided to replace the server and the new one comes with LSI MegaRAID ...
-1
votes
1answer
19 views
How to check 3ware raid controller's health?
I have a 3ware controller and I would like to check the health of the drives and the raid itself.
I found this blog: http://www.cyberciti.biz/faq/linux-check-health-of-3ware-raid-array/
but I ...
0
votes
0answers
31 views
Reconfigure from Raid0 to Raid1, is it possible?
currently I have Fujitsu tx140 s1p servers, one Tower and one Rack.
They are both running with the same hardware, configures the same way, so I'll just ask one Q for both.
They have an motherboard ...
0
votes
1answer
40 views
Solaris not seeing FC volume
We recently replaced a failed controller in an AL connected RAID. I wasn't the one that replaced the controller, but apparently when the new controller was installed something weird happened with the ...
0
votes
0answers
25 views
Trouble resizing LVM volume after expanding Areca 1280 RAID 6
My problem is very similar to Trouble resizing LVM volume after expanding Areca 1220 RAID 5 array; however, my 2 LVs are created on a unpartitioned raid volume:
# pvdisplay
--- Physical volume ---
...
1
vote
0answers
51 views
Dynamic Disk Pooling (next-gen RAID): any experience? [closed]
I recently read this paper from Dell about DDP aka Dynamic Disk Pooling.
Quickly explained, it offers these characteristics:
no reserved hot-spare (all disks contribute to IO and redundancy),
...
-2
votes
0answers
19 views
Can I extend RAID5 or RAID0 array?
Setup:
Dell PowerEdge 1950 with Perc 6/E Expansion Controller
Dell PowerVault MD1000 (15 hard drive slot)
I want to start with 3 hard drive and later add some hard drive. Is it possible?
0
votes
3answers
84 views
Convert RAID 5 to RAID 10 without data loss
I have a Windows SBS 2011 server on a Dell R610 with RAID 5 configuration [3 disk].
Is there a way to convert it to RAID 10[4 or 6 disk] without losing anything or needing to re-install the whole OS ...
0
votes
1answer
56 views
HP SmartArray P212 disabled, cache module not attached
I have a DL180 G6 server with Smart Array P212 RAID controller. The server runs under Ubuntu. After an upgrade from Ubuntu 10.04 to 12.04 utility hpacucli (ver. 8.50-6.0) stopped working. The error ...
0
votes
1answer
37 views
How to get HDD parameters from SCSI controller
The SCSI controller we are using is IBM RAID M1015 and a SATA 3 HDD is attached to it. Now the question, is there any way to get the HDD specific parameters like HDD Model number/Manufacturer, Storage ...
1
vote
1answer
61 views
Adaptec RAID array was not detected after updating the kernel?
Continue from this topic, the newer kernel booted successfully but it doesn't see my sdc - which is a hardware RAID array (level 10).
I'm sure the aacraid module is loaded:
# grep aacraid ...
2
votes
2answers
105 views
RAID 10 — how do you know a drive is going or is bad?
I have some servers with a datacenter all the servers have RAID 10 setup. How do I know when one of the drives is going bad or is bad and needs to be replaced?
EDIT: These servers are unmnaaged and ...
2
votes
3answers
90 views
Extend RAID 1 (HP SmartArray P410i) running Linux
I took over a fairly simple server setup with the following RAID 1 config running Ubuntu 11.10 (Kernel 3.0.0-12-server x86_64):
=> ctrl all show config
Smart Array P410i in Slot 0 (Embedded) ...
0
votes
1answer
88 views
Can I recover data from a RAID5 after accidental changed of disk order? [closed]
An intern yesterday accidentally changed the disk order, now we get there error, "Following containers have missing required members and cannot be configured. Container #0 RAID-5" Then no boot device ...
1
vote
0answers
31 views
Linux CLI program to verify/control nVidia hardware RAID?
I have a server with a Supermicro motherboard that has an nVidia RAID controller on board. When I boot up, I can hit F10 and see/modify the RAID settings.
However, I don't want to reboot this server ...
0
votes
1answer
64 views
RAID: replacing a disk before it fails
We have a RAID 5 setup (Megaraid SAS ROMB) with 4 930 Gb physical disks running as a 2.7 TB VD. Recently (a few months back) we had a drive fail and had to leave it in degraded mode for ages (various ...
0
votes
2answers
49 views
RAID config for write heavy postgresql 9.2 database with four disks
I have a server with 32GB ram, one intel E3-1245 and four 15k SAS disks with a BB LSI MegaRaid controller. I wan't the optimal performance for my server, which will be pretty write heavy at times, and ...
0
votes
1answer
199 views
Checking Hard Disk Health on HP P410 RAID Card
How can I regularly check health of HDDs on a HP DL180 with P410 RAID Card on a live system?
hpacucli is installed, however, could not see any options for this feature.
Using CentOS, 64-bit.
Thanks ...
-1
votes
1answer
108 views
Raid 0+1 vs raid 1 and disk span in windows server 2012 [duplicate]
What is the difference between hardware raid 0+1 and 2 or more RAID 0 with disk span?
what are the differences: advantages and disadvantages?
0
votes
0answers
113 views
“stripe size” for RAID 1
I have an HP RAID controller with a nice big flash cache with which I'm setting up a simple RAID 1 array on two disks. I can configure the strip size (shown equal to full stripe size) of this RAID 1 ...
0
votes
1answer
126 views
How to live migrate Raid 6 to Raid 10 - and add hard drives in the process - using MegaCli
I have a new server, that has 6 SATA HDs with 1TB each.
I am using a Hardware Raid
01:00.0 RAID bus controller: LSI Logic / Symbios Logic LSI MegaSAS 9260 (rev 03)
The server came preconfigured ...
0
votes
0answers
32 views
Can I sell a commercial product that runs Arch Linux? [duplicate]
Can I use arch linux in a commercial product?
For example, Can I sell a custom built audio mixer based on the raspberry pi hardware with arch as the OS. I do not plan to mention the RPi or Arch in ...
0
votes
2answers
94 views
Raid 1 and Latency
I am aware that RAID comes with certain write penalties, etc and that varies at different levels. I am trying to figure out how latency is affected in RAID 1. From my SAN, I can look at the number of ...
0
votes
0answers
51 views
The logical drive has failed and cannot be used
msa1500cd from ADU device error report :
The logical drive has failed and cannot be used. All data on this logical drive has been lost.
Can I save or extract the data? I have a total of4 logical ...
0
votes
2answers
149 views
move raid hard drives between different servers, preserving data [duplicate]
Possible Duplicate:
Move raided hard drives between identical servers, preserving data
I'm a server beginner working with a Sun x4600 and an IBM x3650. In the event that one of them dies, I ...
0
votes
1answer
81 views
Move raided hard drives between identical servers, preserving data
I have a raid array of hard drives in a Sun x4600 that need to be moved out, and another Sun x4600 ready to accept those hard drives.
The problem is: in my limited experience with servers, it seems ...
3
votes
2answers
201 views
Write caching in linux
I have read a lot on serverfault and searched on google about write caching, but still cant find the answer.
I have an HP ProLiant DL380 G5 with HW raid with 512 MB Battery backed cache. I use debian ...
0
votes
0answers
121 views
LSI 9286-8e MegaRAID controller beeping when connected to 24-bay NexentaSTOR JBOD enclosure
I am getting beeping from the LSI external RAID controller even if I properly shutdown and there is no array re-initialization.
Would I be required to use a battery back (BBU) with the LSI controller ...
5
votes
1answer
88 views
what harm can writeback caching have on a degraded disk array?
At work I administer several machines using (real) hardware raid controllers (with battery backed write caches), and these have the nasty habit of falling back to writethrough behaviour when an array ...
2
votes
1answer
217 views
Online resize logicaldrive on Smart Array P410i
On my HP Proliant server I have hot added 2 extra drives. To expand the current raid 1 array I used the following commands:
hpacucli ctrl slot=0 logicaldrive 1 modify raid=1+0
hpacucli ctrl slot=0 ld ...
1
vote
1answer
109 views
Two raid controllers in one HP ML350 G4 server
Here's the situation: I have running HP Proliant ML 350 G4 server, which already has Adaptec AAC-RAID controller and 2 HDD built as Raid-1. Now, I want to add another 2 HDD but for them I have another ...
1
vote
2answers
293 views
Can a PERC H700 controller card recognize the full capacity of 4TB drives?
For example if I go to create a new virtual disk in Dell OpenManage Server will it see the full capacity of the physical drive? I know it's supposed to be able to use a full 3TB drive but I can not ...
0
votes
1answer
120 views
Dell Perc 6i raid5 array: replace drives and expand VD?
I have a Dell T300 with a Perc 6i, to which 3 500Gb drives are connected. The are assembled into a raid 5 ~1000Gb VD. This setup is working fine, however system is filling up and I would like to ...
1
vote
3answers
1k views
How to replace failed drive in RAID 5 array in HP DL380 G4 server
Sorry for not providing more information when I previously posted this question. More detail is provided below. Any feedback would be welcome.
I have a HP DL380 G4 2U server which has 6 drive scsi ...
0
votes
0answers
192 views
How to rebuild or replace a drive in a RAID5 array [closed]
I have a 4 scsi drives in a RAID 5 configuration and one of them has failed leaving the server in an interim recovery configuration. I have 2 more drives in the server that just show up as unassigned ...
2
votes
3answers
107 views
Will a raid cache be better for performance than hard drive cache speeds?
In a device that has raid 5, and a "raid cache" of 4GB, does this help performance? I have 32MB cache hard drives but I was wanting to know if the 4GB cache will make up for the difference in ...
3
votes
1answer
321 views
Rebuilding RAID 10 array with two failed drives
I have dedicated server with 4 HDD in hardware RAID 10 configuration and It worked fine until yesterday, when It started to crash randomly on couple minutes. I’ve contacted my data center and they’ve ...
3
votes
1answer
236 views
moving raid 10 to another identical server both on Smart Array 6i controllers
I have dead HP DL 380G4 with RAID 1+0 with 1 logical volume from 4x72GB drives on built-in Smart Array 6i 128Mb BBWC. It was shut down properly. It seems it was usual death for Proliant with ILO led ...
2
votes
1answer
201 views
RAID 1 configuration does not show after installation
I used the HP Smart Array Configuration utility to setup a RAID 1 array (hardware P400 controller) using four disks. I created 2 logical drives with physical hard drive 2 mirroring drive 1 (o/s ...
0
votes
2answers
72 views
New harddisc in RAID fails after only a few days
Last weekend I had to replace one harddisc in a RAID 1 on a PERC/5i controller because it reported it as failed.
After replacing the disc it worked for 5 days and then the controller started ...
1
vote
1answer
134 views
internal RAID (on PCIe 3.0) versus external Thunderbolt RAID like Pegasus R6
I want to build up a new server-config in a small SOHO environment for some virtual machines (VmWare Workstation), like Firewall/VPN or Win8-WS for external access, etc. Some VM’s will be heavily ...
1
vote
0answers
102 views
Possible bad raid card / hard disks (LSI 9261-8i)
I am in a bit of bad spot at the moment, i have a dedicated server hosted by someone else, it has a LSI 9261-8i raid card installed, attached is:
3x300GB SAS 15K rpm disks (in RAID5)
5x2TB SATA ...
3
votes
1answer
159 views
Manually recovering a RAID5 array, how to approach?
Basic situation:
I'm looking to manually reconstruct a RAID5 array for which the controller has lost the configuration. To complicate matters, the volume is encrypted with full disk encryption (to ...
0
votes
1answer
238 views
Configure raid for IBM x3200 M2
I have a x3200 server and I have planing to use raid 1 for mirroring Sata Hardisk .
I am searching on google to find raid server manager for x3200 , but no luck .
Is there another way to configure ...
1
vote
1answer
112 views
RAID 50 24Port Fast Writes Slow Reads - Ubuntu
What is going on here?! I am baffled.
serveradmin@FILESERVER:/Volumes/MercuryInternal/test$ sudo dd if=/dev/zero of=/Volumes/MercuryInternal/test/test.fs bs=4096k count=10000
10000+0 records in
...
1
vote
1answer
26 views
Ordering new Virtualization Hosts - Do I need a Raid controller if my storage is shared?
I am planning to order some new servers. It crossed my mind that I can reduce my costs a bit if I do not order a raid controller.
The logic behind, is that my storage is on a shared storage server, ...
1
vote
0answers
180 views
linux hardware raid 10 / lvm / virtual machine partition alignment and filesystem optimization
I've been reading everything I can find about partition alignment and filesystem optimization (ext4 and xfs) but still don't know enough to be confident in setting up my current configuration. My ...
-1
votes
4answers
1k views
How to check HDD health in Linux
I am facing issue with my HDD and I need to know what is the command or application to check the Health of the HDD in LINUX REDHAT
-2
votes
2answers
149 views
Is it okay to shut down Adaptec 5085 / MSA60 raid for 5 hours?
Adaptec Raid 5085 with no battery (on the raid card)
6 MSA60s
Raid 10
Big APC UPS with low load
Our building power needs to go out for 5 hours. Is it okay to shut down the raid ...
1
vote
0answers
99 views
Can I use tw_cli migrate to grow a RAID10 unit where the drives for that unit were each replaced one by one with larger drives?
Can I use tw_cli migrate to grow a RAID10 unit where the drives for that unit were each replaced one by one with larger drives? (And the array was rebuilt after each replacement operation.) I am ...
