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.

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0
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1answer
23 views

Intel RAID controller cannot open BIOS and doesn't recognize hard drives

I recently bought a second-hand Intel RAID controller (SRCSASLS4I) for my Ubuntu server setup (YunoHost actually). I connected 3 hard drives that had previously been used for a software RAID (I did ...
14
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5answers
7k views

ZFS best practices with hardware RAID

If one happens to have some server-grade hardware at ones disposal, is it ever advisable to run ZFS on top of a hardware-based RAID1 or some such? Should one turn off the hardware-based RAID, and run ...
0
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1answer
21 views

RAID 5 - disk rebuild and strip data

we have a raid 5 with 12 ssds plus 2 spares and one came to fail, now one of two of spares is active and a rebuild is happening: in raid 5 data is striped in all disks or it is stored in each disk ...
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3answers
2k 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) ...
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votes
5answers
4k views

How long should a RAID Reconfiguration take? (Adaptec 6805)

I'm experimenting with various RAID configurations of a new Adaptec 6805 (not the 'E' model) Attached are 8x Hitachi 5400RPM 2TB SATA 6Gb Drives using the miniSAS to SATA cables provided. I created ...
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2answers
860 views

Bandwidth with SAS expanders and RAID controllers

Having a RAID controller that has eight internal SATA3 lanes, you can get 6 Gb/s on all eight drives. What if I connect a 24 port SAS expander to an eight port RAID controller, do I still get max ...
0
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1answer
23 views

Safe and beneficial to enable HD disk cache for disks in RAID, or not?

Dell Perc RAID cards (among others) allow you to set the disk cache policy to be either on (meaning, the individual hard disks use their built-in caches) or off (meaning, the individual disk caches ...
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0answers
31 views

driver installation failed on Oracle Linux7.1 :“no ios files found on sda1”

Hardware-RAID installation failed. I have similar problem for this. How to load hpvsa.ko (RAID controller B120i) module in Centos 7.1, (seems no longer supported)? But a little different. ...
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2answers
620 views

RAID controller won't rebuild RAID-1 array

I have a RAID-1 array on a desktop computer. The RAID controller is a 3ware 7006-2. Recently the controller has been reporting ECC errors from one of the drives. It was able to correct all of those ...
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vote
3answers
658 views

What is recommended size of hard disk for a Server?

I have heard that large hardisk >= 1TB are not recommended on the server because they can cause synching issues if one fails + their chances of failure is greater over a longer period of time as the ...
2
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1answer
2k views

Grub install failing on Hardware RAID with LVM

I have a SuperMicro box with an Areca RAID controller installed. The RAID controller is configured for RAID 6 + Hot Spare. I am attempting to install Ubuntu 12.04 LTS. I set up LVM with separate ...
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1answer
59 views

Raid 50 on Dell Perc H700 Integrated Resynching state

I have Raid 50 configured on a Xenserver host with a Perc H700 card and a few weeks ago, replaced a disk which had failed. The raid had rebuilt and I am now checking the status of the array via ...
1
vote
1answer
21 views

Lost Partition on x3650

I have a RAID6 array with 1 logical drive. 3.7TB. The partition has been lost. I've tried several program to recover the partition. The most promising of the bunch was MiniTool Partition Wizard. It ...
0
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0answers
48 views

How can I find out my centos RAID setup, with a LSI MegaRAID SAS 2108 controller?

I've bought an auction box from Hetzner which allegedly has 4 3TB drives in it. As a relative newb to this sort of thing I just want to see some reassurances on the command line that this is all ...
0
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1answer
154 views

R610 PERC 6iR - Incompatible with SATA

I purchased a couple R610 servers which has been a constant source of frustration lately. I got a heck of a deal on them with a single 2.93 Ghz processor and 96GB RAM, so I cannibalized one and got a ...
2
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1answer
56 views

Replacing a Self encrypting Hard Drive in an IBM xseries server raid

I have a failed drive in a RAID 5 array in an IBM x3650, Machine Type 7945. The RAID is composed entirely of original IBM SED SAS drives, 300GB ea. Unfortunately I am the purchasing Tech, not the ...
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0answers
26 views

load balancing in multiple hardware raid arrays - soft raid 0 acceptable?

We have a central storage server (PowerEdge R720) serving shared files to an HPC cluster, and it has two hardware RAID controllers attached (PERC H810, each driving 2 MD1200 enclosures filled with ...
0
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1answer
113 views

Adding New Drives to Dell R720 in RAID 1 Configuration w/ Dell Lifecycle Controller

I have a Dell R720 with two 136GB drives set up on an existing virtual disc running RAID 1. I've run out of room, purchased two additional 600GB SAS 15K drives I'd like to set up for RAID 1 also to be ...
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3answers
41 views

How can I enable caching on the RAID card or Hard Disk(s)

I've got a HP ML350 G5 server running 6 disks as two RAID-5 configurations. This server has been notifying me of an empty battery on the E200i card. This seems to result in disabled cache: read and ...
1
vote
1answer
35 views

3rd party HDDs in Dell Poweredge r805

I have a Dell Poweregde R805 Server that came with two 147GB 10K SAS drives. To stack up the storage on this machine, i purchased two SATA drives (HGST Travelstar Z7K500, 500GB, 7200RPM, SATA III). ...
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2answers
43 views

Converting from RAID 1 to RAID 0

We have 2 x 600GB SAS 15K drives configured in RAID 1 through a PERC H710 RAID controller in a PowerEdge R620. Question. Can we convert this to RAID 0 without having need for a OS reinstall? If so, ...
0
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1answer
38 views

PCI RAID Controller Card bandwith for a RAID1 array of SATA III drives

I want to build a hardware RAID1 setup with two HDDs (SATA3, 7200, 64MB cache) and I'm looking at two, almost the same, Adaptec cards (6405E vs 6805E) The 6405E is PCI-E 2.0 x1 while the 6805E is ...
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0answers
47 views

Stress Test Hard Drive attached to a LSI controller on Hyper-V

I have a LSI 9265-8i controller running on Hyper-V. How can I stress-test the hard disks in-situ? I'd like to test things like iOPS, seek times etc.
4
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1answer
84 views

Can I stripe 2 volumes on the operating system drive?

I'm new to system administration and I'm not really sure if this is possible. Our server supports up to 4 x 2 TB drives. We need a drive larger than 2TB for a particular use. We also need redundancy ...
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0answers
89 views

LSI Raid controller: identifying failing hard disk (MegaCLI)

Info: I have a LSI 9265-8i controller. It's been running pretty well for two years. More recently it looks like a drive may be failing - no errors reported and no media issues reported when viewing ...
19
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8answers
20k views

RAID-5: Two disks failed simultaneously?

We have a Dell PowerEdge T410 server running CentOS, with a RAID-5 array containing 5 Seagate Barracuda 3 TB SATA disks. Yesterday the system crashed (I don't know how exactly and I don't have any ...
2
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1answer
94 views

Are RAID 5 systems suitable for larger disk sizes?

Why is it generally considered that RAID 5 systems are not suitable for larger disk sizes? Is the same true for RAID 6?
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votes
2answers
354 views

Replacing HP P410 with P420 and keeping the data

Would it be possible to replace HP P410 raid card with a HP P420 raid card while keeping the data? I've replaced P410 with P410 without any issues obviously. I believe they use the same software, so ...
2
votes
1answer
154 views

HP 420i disk controller in Gen8 ProLiant fails to detect third-party disks

I have some fresh out of the box HP Proliant Generation 8 servers which have the HP 420i disk controllers built into the motherboard. Once upon a time the disk controller was a PCI card but now in Gen ...
2
votes
1answer
341 views

Rotate entire disk set in RAID0 array?

We have a Lenovo RD430 with a RAID 500 controller. Installed in the server are 6x 4TB drives configured as 2x RAID0 arrays of 3x 4TB each, however, we also have another 3x identical 4TB drives and ...
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vote
1answer
656 views

HP P410 “Parity Initialization Status: Initialization Failed” How to fix?

I'm using HP P410 raid card with BBU with 12 x 3TB drives on RAID50 After a power outage at the datacenter, the hpacucli shows this: Parity Initialization Status: Initialization Failed However, all ...
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0answers
75 views

IBM x3550 7978-5GU ServeRAID 8k-l Firmware Corrupted

I was experiencing the server running slow with a new installation. I started updating firmware and during the upgrade of the ServeRAID firmware to 17003, we had a power hiccup and the server shut ...
1
vote
2answers
582 views

Red Hat installation on HP ProLiant does not detect hard drive

I have an HP ProLiant BL460C Gen8 having real hardware RAID. I am trying to install Red Hat Enterprise x86_64 bit on an HP ProLiant (iLO 4) server with an Array of 2 hard drives configured as RAID1. ...
3
votes
2answers
214 views

Should I be concerned by frequent RAID warning message (unexpected sense - command aborted)?

I have a Fujitsu host (PRIMERGY RX300 S6) running Windows Server 2008 R2 and Hyper-V (Version 6.1) with two virtual servers (one Windows Server 2008 R2 and one Windows Server 2012). Our 25 employees ...
6
votes
5answers
3k views

RAID level confusion (MegaCli vs megasasctl output)

I'm utterly new to working with LSI MegaRAID controllers and I'm confused as to what RAID level I am actually running. My server is equipped with 4 disks, 4TB each and I would like to have them ...
1
vote
2answers
76 views

What is RAID 5 write logic with 8 drives running SQL 2008?

We recently had a raid array fail on a SQL 2008 server with 8 x 73GB drives. (Dell 2950). There were two drives that went bad (one had been bad for a few months it seems and was not caught...). To ...
0
votes
1answer
45 views

Data recover hardware raid vs zfs pool

How does one recover data after disk failure in zfs software raid or Synology hw raid? Is it easier , less corruption in one or other ? Is one more susceptible to write corruptions than other ? ...
1
vote
1answer
93 views

HW Raid controller error

On one of my old servers when i was randomly checking for system messages /var/log/messages in this Redhat case. I came across this message Mar 9 12:11:46 app-prod kernel: 3w-9xxx: scsi0: ERROR: ...
0
votes
1answer
54 views

Will 3ware controllers continue to rebuild when I reboot the computer?

I am using a 3ware 9690SA-8I controller and one drive in my raid 6 hick uped and now the raid is rebuilding. Meanwhile I noticed I have an unfortunate combination of stupid programs and I need to ...
0
votes
1answer
159 views

How to check ESXi 5.0 LSI raid rebuild status

Product name: LSI SAS3041E Is it possible to check the status of the rebuild? At the moment I only see that the raid is rebuilding/syncing from the lsi_log script, /var/log/vmkernel.log and vSphere ...
2
votes
1answer
680 views

RAID5 array Ready for Rebuild

I've inherited administration of a server with a RAID 5 array. We have a damaged database on the array that is just over half the allocated size, so makes recovery impossible. I recently changed the ...
0
votes
1answer
78 views

P410i: replacement disk disk is not synchronizing; Port ID changed from 1l: to 2l:

Little problem: Our SA 410i changed the adress of slot 5 of the disk-backplane from Port 1l: to Port 2l:. I don't know why there were no configuration changes made. We have an HP 380 G6 with an ...
4
votes
2answers
449 views

Is it Possible to Automatically Resilver a ZFS Array On Hotswap

I'm trying to learn about ZFS for a NAS I'm planning on building. I'm trying to understand if the following scenario would be possible to set up. Disclaimer: I know very little about ZFS, so forgive ...
3
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1answer
1k 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 ...
1
vote
1answer
232 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 ...
1
vote
1answer
506 views

3ware 9650SE-2LP “sync” after a drive failure

I have a 3ware 9650SE-2LP card that was set up to mirror two 1 TB disks (let's call them Disk A and Disk B). A couple of months or so ago the array stopped working (gave me an error at boot-up saying ...
3
votes
2answers
9k views

HP ProLiant ML350 G6: Does the RAID rebuild automatically?

One of SAS hard disks of this ML350 died. We're buying a new one and I wanted to ask if I can just take out the faulty one and insert the new one with the server on to let it rebuild the raid or I'm ...
2
votes
1answer
3k views

Rebuilding array on 3ware 9690SA-8I

TL;DR version RAID10 array working fine Reboot server as part of maintenance Array inoperable (no access whatsoever) Controller logs say a single drive is bad Remove drive & test - no bad ...
3
votes
2answers
11k views

Proliant RAID 1 Rebuild Questions

I have a HP Proliant ML350 G5 server that experienced a power supply failure overnight. The power supply was replaced but unfortunately it got restarted with only 1 disk in the RAID 1 set plugged in. ...
2
votes
5answers
5k views

Disk failed part way through 3ware RAID 5 rebuild

I have a 3ware 9650SE RAID controller with a RAID 5 array containing 15 Seagate ST31000340NS disks. After noticing ECC errors in the Port 10 drive I replaced it with a spare and began a RAID rebuild. ...