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Questions tagged [hardware-raid]

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.

693 questions
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ThinkServer RD440 raid mess

Does anybody have experience dealing with raid config on these new Thinkpad servers? My problem is the following: In order to be able boot this server I must put the drives to RAID1 to create an SCM device. I did this with 2x1TB drives (then due to…
zino
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New RAID hdparm slow

I just got a HP DL180 G6 that has 25X 146GB 15K SAS drives, 36GB RAM, 2X 2.0GHz Xeon 1333Mhz FSB. For fun I configured them all in a single RAID 0 and installed Ubuntu on it to see how fast it could get with 25 drives on a HP Smart Array P410…
Alan
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When does a Raid restore redundancy after a broken sector is flagged as defective?

What happens when I flag a sector on a hdd in a RAID setup as `defective (GLIST) ? Will the data be written to the replacement sector right away or does this depend on the actual setup/settings (soft/hardware raid)? Example: Raid 5 - 4 Drives -…
Benedikt Haug
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RAID hard drive configurations

I'm building a linux traffic shaping routing box for a leased line connection. This box has to be reliable, so I'm planning on installing the operating system and data files on a RAID 1 configuration. My question is twofold: I was going to use…
Thomi
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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 spare disk in bay 25 to be part of the array…
TrevorW
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Large write with dd fail on RAID-5

I have a server with a RAID controller which connects to a JBOD over SAS. JBOD is populated with 16 SAS-HDDs of 3TB (8 of one make and 8 of other, same rpm). I have configured 3 logical drives with RAID-5, each having 5 physical HDDs (+1 as…
hrs
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Why does a RAID-0 volume randomly fail with healthy drives?

I have had a pair of 5 year warranty WD Velociraptors hardware stripped on an intel ICH8R motherboard controller for about 1.5 years. The other day, the volume randomly failed during no specific activity and the RAID bios indicated one of the…
Matias Nino
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Is file system alignment required on hardware-raid with SSDs?

We are building a raid-10 with LSI 9260-4i + 4 x Intel DC S3500 SDDs. Partition alignment From what I understand I need to start fdisk with -H32 -S32 or Ted T'so variant with -H224 -S56 in order to align the partitions to 512k and 128k…
Andy B
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SSDs, Hardware RAID, and TRIM

I was told by my datacenter that all HW raid, specifically the LSI 9260-4i hardware RAID controller, does not support SSD TRIM command. My question is, are there severe longevity/speed issues due to this? My datacenter said I would be better off…
user3180
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Dell R320 RAID 10 with CacheCade

I'm looking for a higher-performance build for our 1RU Dell R320 servers, in terms of IOPS. Right now I'm fairly settled on: 4 x 600 GB 3.5" 15K RPM SAS RAID 1+0 array This should give good performance, but if possible, I want to also add an SSD…
Geekman
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How to determine HP Smart Array model?

How to determine HP Smart Array model on HP server? I own HP 350 G6 server. Really do not know where to look, is there a utility tool that can help me find this information, or is there a sign on the hardware? Thanks Ok, I used Array Configuration…
John
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HP P410 ADU (hpacucli) generates empty report

I'm trying to monitor hard drive's smart status. I've tried smartctl tools and HP's own hpacucli to generate ADU report. However, neither of them are useful. smartctl does not show values like Power On Hours or Hard drive temperature. ADU report…
ispirto
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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 SAS 8888ELP. The HW supplier insists the migration…
MLu
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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 add drives=allunassigned Now the logicaldrive…
Vincent
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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 run a system diagnostics and they found that one…
SkechBoy
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