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Questions tagged [raid0]

RAID 0 or Striped Set splits data across two or more disks, without redundancy.

RAID (Redundant Array of Independent Disks) Level 0 or Striped set uses two or more disks combined to act as one larger volume. The data is split or "striped" across each disk, increasing throughput. RAID 0 stores no parity information and thus provides no data redundancy: the loss of one disk in the set will result in the loss of the whole volume.

RAID 0 is commonly used in conjunction with RAID 1 to form RAID 1+0 (10) in what is referred to as a Nested RAID. RAID 10 is a striped set from a series of mirrored drives.

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System auto restart during the FIO stress test on a RAID0 array(6x SSDs) created by mdadm under Yocto OS

I met a problem when executing FIO stress test on a RAID0 which built from 6x SSDs thru mdadm under Yocto OS, below is the information: 6x PCIe NVMe SSD are the same vendor and model which is with 1.02TB automotive grade. FIO parameter used for the…
Jacky Lee
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How to make one volume with maximal capacity out of the two disks in a 2-bay NAS without striping

I have a Synology NAS with two disks which I want to combine to one large volume for backing up an other system. I don't need redundancy, so something like RAID 0 would do. However I don't need the speed benefit of striping the data, but rather use…
halloleo
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remove raid0 from a dell t710 using perc

I got a dell server with 2 physical harddrives that are seen as one, because the system is utilizing raid0. How do we disable this striping, such that we can see two different drives. I'm well aware that this will cause all the data to be erased,…
None
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How to change size of RAID0 software array by resizing partition?

I've RAID 0 built with mdadm on two disk partition on two separate disks. Is it possible to resize (enlarge) this array by resizing the underlying partition, i.e. do something like stop array->enlarge partition->start-array->mdadm -G -z max and then…
Nick
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High iowait with RAID0. CPU 100%. Static data is not cached in RAM

I ask for your help. I myself can no longer see the way out. I have a server 1x Xeon E-2236 32RAM 4 x 10TB disks (WDC WD101KRYZ-01) - collected in RAID-0. The disks are fast. Each individually provides 250MB/s read/write. The RAID-0 array produces…
Grey Hill
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How do I maximize nvme raid0(md) performance (in linux)?

Nvme raid0 read(and write) performance is sometimes worse than the performance of one individual underlying drive. hdparm -t /dev/md0 : Timing buffered disk reads: 7054 MB in 3.00 seconds = 2350.46 MB/sec hdparm -t /dev/nvme0n1 : Timing…
Horatiu
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Dell Poweredge 710 Server amber flashing light

I have Dell PowerEdge R710 with PERC 6i and I am trying to install HP 512 HB SSD in RAID 0 and for some reason, it is constantly blinking flashing amber instead of green. I am running Hyper-V on Windows server 2016. Drive shows up fine and seems to…
Andy Johnson
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mix SAS and SATA HDDs in RAID 0

Specs for some RAID controllers (for instance LSI 9261-8i) say that it's possible to mix SAS and SATA disks in the same RAID array but such practice is discouraged (but without explanations why). There was mention here on SF that some admins use…
Mark Smirnov
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desperate attempt to head off RAID 0 failure, can i copy a disk with dd?

A colleague has been using a 10TB RAID 0 array to edit a film. He suddenly realized it's 98% full. The array has started seriously acting up, but cooperates grudgingly if you shut down all processes that might index this array and interact only with…
S. Imp
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What is the risk of RAID 0 for a *single* disk versus no RAID on that disk?

I have a server that I'm having trouble with getting the drive to show up without using RAID. However, that's different question. This question is about the problems running a RAID 0 on a root drive in a server and what potential problems it could…
user250795
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HP Microserver Gen8 RAID0 rebuild loss data

I have 2 WD HDD on gen8 and built as RAID0 on slot1 and slot2, and I have unplugged this two disk and install seagate disk on slot 1 and slot 2. and SmartArray report there are no raid found. then I create an raid0 for seagate disk in slot 1 and…
user219031
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Install Windows Server 2012 on separate disk or in RAID 5?

I have a RAID controller with 4 1TB disks and first I put them all in a RAID 5 array, partitioned 1TB for OS and 2TB for data. Then I noticed that the raid array was never idle. It was constantly writing 24/7 and I figured it must be the swap…
Max Kielland
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What to do when raid 0 errer: Following Arrays have missing required members and cannot be ... Array#0-RAID-0

here are the tried status: It is a raid 0 configuration and have 2 disks. When using IBM ServeRAID Configuration Utility, there are three options: 1. Array Configuration Utility : see below 2. SerialSelect Utility : not used 3. Disk…
tmjdone
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Raid0 IOPS poor performance

I've set up 8x500gb disks in raid0 on an EBS optimized EC2 instance and I ran iops.py to check the speed, but it seems really slow. Does anyone know if this is normal speeds for raid0? I'd think I'd be getting IO/s over 1000 more or less…
Mackwerk
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How do RAID 0 Offers improved i/0?

Possible Duplicate: What are the different widely used RAID levels and when should I consider them? I wonder how RAID 0 offers better i/o. If i am not wrong in RAID 0 data gets split and stored in different HDD. in that case for every read…
Kevin Parker
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