Skip to main content

Questions tagged [raid-10]

RAID (Redundant Array of Individual Disks) 10 is useful for both speed and redundancy

0 votes
1 answer
835 views

Could someone, anyone, help me rebuild my RAID 10 array please?

A little background information just to help (hopefully)... I was doing a backup from my Synology box over the weekend and all was going very well up until Sunday morning when I've tried to re-connect ...
Phill's user avatar
  • 23
0 votes
1 answer
600 views

How many NVMe SSDs can I connect to a desktop PC and how?

I have 25 NVMe 2230 SSDs, each of them 256 GB. I was wondering how many of them can be connected to my desktop PC somehow. I know there are some adapters like quad NVMe to PCI-E but I want to use a ...
Alpay Aydıngüler's user avatar
0 votes
0 answers
173 views

Raid 10 gone - how to rebuild / find informations

Because of another task, i had to disconnect all the raid hdd's from my pc. Shutdown -> disconnect hdd's -> boot -> shutdown -> connect hdd's -> boot -> raid completely lost. mdadm --...
eXe's user avatar
  • 101
0 votes
0 answers
831 views

Broken & Offline RAID10 - Array How to Add Drives Back (AMD RaidXpert)

I have a RAID10 array using 4 drives on an AMD Chipset controller (890FX). I had to unplug my drives to replace a failed water pump and when I booted up realised I hadn't plugged one drive in properly....
TimTrott's user avatar
0 votes
2 answers
2k views

Why is Raid 10 better than Raid 01?

It would appear to me performance wise, they are the same, isn't it true? That is, if we write a 1GB file to Raid 10 or Raid 01, then we are letting each drive write 500MB of data, so it is increased ...
nonopolarity's user avatar
  • 9,706
1 vote
2 answers
2k views

How to migrate mdadm RAID10 with 4 disks to RAID5?

I have a software RAID10 based on Linux’ mdadm under Debian Buster. Originally I found RAID10 had best performance. But I need more space and accept to trade some write performance for +50% space. # ...
Daniel Böhmer's user avatar
0 votes
2 answers
1k views

CentOS 8 doesn't find any disk

I need some help about CentOS 8. I am trying to install CentOS 8 to Dell PowerEdge r715 server with a RAID-10 configured, but when I run the installer, it can not find the disks form the server, but ...
walle's user avatar
  • 3
2 votes
0 answers
242 views

Up to which point (disk size) is Raid 6 safe to use? [closed]

I have been reading a lot of warnings about Raid-6 becoming less and less safe to use due to the storage amount per disk as well as array sizes increasing. What are the best practice limits/when does ...
user2693017's user avatar
3 votes
0 answers
185 views

Metadata of the assambled raid inconsistent with the metadata of the individual drives?

We have a raid 10 with two failed drives, with one drive from each set still functional. When booting into rescue system the metadata seems to be fine and consistent with the expected state. The ...
user910763's user avatar
0 votes
0 answers
31 views

Reassemble RAID10 after install

My system drive broke so I have lost the software RAID10 I had. Is there any way to reassemble the RAID10 when I have installed a new system? I ran Ubuntu server 17.10.1, aiming to do the same again.
swe_mattias's user avatar
2 votes
2 answers
5k views

ZFS RAID 10 pool with mixed disks size

I have 4 disks: 2x2TB and 2x1TB. All of the same RPM 7200 and manufacturer. OS is Ubuntu 16.04. I want to make a RAID 10 pool, but I've heard that mixing disks size is not a good approach to ZFS - ...
Artico's user avatar
  • 23
2 votes
1 answer
4k views

How to increase storage space in a RAID 10?

So Lets say that I have a server running on 4 hard drives... We have them in a RAID 10 setup and they are all 600GB. Now I take one of them out, then swap it physically with a 1.2TB HDD. In this ...
user avatar
0 votes
1 answer
2k views

My RAID 10 Array has corrupted, how do I get back my data?

I have a server with 4 drives in a RAID 10 array. Recently my server was down with the Array not detecting the drives. Only a single drive is currently being seen by the RAID card while a second ...
Car12's user avatar
  • 1
0 votes
1 answer
618 views

On an HP proliant DL380 G9 with P840 RAID10 vs mdadm RAID10

On an HP proliant DL380 g9 with smartarray P840, I have a ubuntu 17.04 vm acting as an ownCloud server. Does it make difference if I use a HW RAID10 instead of mdadm RAID10? Is there any data that ...
Fawzi Masri's user avatar
0 votes
1 answer
641 views

difference between SSD RAID10 and number of SATA3 RAID 10

I want to order a dedicated server, Its a powerful server using 2 x CPU and 128 GB RAM I can choose between 2 following combination for Hard Disk: 4 x SSD 480GB (Raid 10) 12 x SATA3 3TB (Raid 10) ...
Farhad Sakhaei's user avatar

15 30 50 per page