All Questions
11
questions
0
votes
1
answer
2k
views
Remove a disk from RAID 1 array or convert from RAID1 to RAID0
I've a dedicated server running a RAID1 array of 2 disks of 1TB.
I can't install a new operating system but I can only bootstrap a new one with the predefined configuration.
I really don't need the ...
- 101
0
votes
0
answers
331
views
Why Raid 1 don't improve read performance like Raid 0?
It should be able to read the data across the 2 disks like with Raid 0 right?
but when I look at benchmark it looks like only one drive is used to read the data.
https://raid.wiki.kernel.org/index....
- 667
0
votes
1
answer
513
views
How to create raid1 mirror for existing mdadm raid0 - without overwriting data
I created a /dev/md1 raid0 across two drives, added ext4 filesystem, and it's mountable and working fine.
I created a /dev/md2 raid0 across two drives, added ext4 filesystem, and it's also mountable ...
- 3
0
votes
1
answer
116
views
Raid 0 with mixed drives
I have following 7 physical drives
When trying to create RAID0
It shows the total capacity as 237.2 instead of 365.2
So is there any RAID configuration where I can have a single volume spanning ...
- 2,237
0
votes
3
answers
775
views
Ubuntu - OK to raid0 and raid1 on same two drives?
I'm building a household Ubuntu 14.04 server and just installed two 3TB drives for the files and media. The box (HP DC7900 SFF) uses Intel Matrix RAID which, according to wikipedia is neither hardware ...
- 279
0
votes
2
answers
5k
views
Converting Boot drive from RAID0 to RAID1
I bought a HTPC I plan on using as a NAS/HTPC combo, which has been working well for me for a while now. When I bought the machine from Dell, it came with 2 500GB HDDs in a RAID0 configuration as ...
- 113
0
votes
2
answers
120
views
Is it possible to build RAID0 or RAID1 using 2 disk when one disk is not cleen?
I'm using win 7.Is it possible to build RAID0 or RAID1 using 2 disk when one is not cleen?
I have 2 same hdd disks, one of them cleen and one with data.
I want to build RAID0 or RAID1 (on the fly) ...
- 357
1
vote
2
answers
289
views
Raid-0 (2xSSD) + Raid-1 (1xHDD) possible?
Is it possible to have the following setup?
2 x SSD (2x128gb) in RAID-0 (for performance)
+
1 x HDD (1x500gb but using 128gb) in RAID-1 (for redudancy)
If so, does the HDD mirror give a decrease ...
- 361
0
votes
2
answers
5k
views
What are the theoretical performance differences between a single disk and a RAID-10 array?
Not taking hardware RAID cards into account, what kind of theoretical performance improvements should I see when using 4 disks in a RAID-10 array vs 1 disk by itself?
For example, on RAID-0, I would ...
- 9,651
8
votes
3
answers
7k
views
Practical RAID Performance?
I've always thought the following to be a general rule of thumb for RAID:
RAID 0: Best performance for READ and WRITE from stripping, greatest risk
RAID 1: Redundant, decent for READ (I believe it ...
- 7,164
3
votes
4
answers
26k
views
Motherboard RAID support or Hardware RAID controller?
About a year ago when I was researching how to set up some drives using RAID on a PC I was planning to build, everyone said I would need to purchase a hardware RAID controller, the decent one was ...
- 5,042