Raid 10 speed

[Matt_98]

I have a raid 10 array in my PC (2 barracudas 1WD Blue and a WD green). The green drive is much slower thaan the others (around 70MB read) could it be bottlenecking my array or are these numbers normal?

[Rohime]

8 minutes ago, Matt_98 said:

I have a raid 10 array in my PC (2 barracudas 1WD Blue and a WD green). The green drive is much slower thaan the others (around 70MB read) could it be bottlenecking my array or are these numbers normal?

 

Seriously you have different type drives in the same RAID?  Not good practice.

 

What model are the barracudas?

[Matt_98]

3 minutes ago, Rohime said:

 

Seriously you have different type drives in the same RAID?  Not good practice.

 

What model are the barracudas?

 

I have different drives because they are different batches and the barracudas are both the 7200rpm models one is new the other is about a year old

[zMeul]

a RAID array is as fast as the slowest drive

 

putting WD Greens in RAID is a really really horrible idea

[Rohime]

10 minutes ago, Matt_98 said:

I have different drives because they are different batches and the barracudas are both the 7200rpm models one is new the other is about a year old

still not good practice.

 

Anyway ....  this is the stats for my WD Blacks in RAID1 (not 10) so you numbers are not bad but not great either for slower+stripped.

 

Man - i forgot just how SLOOOOWWWWWW     HDDs were.

[Matt_98]

2 minutes ago, zMeul said:

a RAID array is as fast as the slowest drive

 

putting WD Greens in RAID is a really really horrible idea

 

yea figured as much (only spare drive I had). how simple is it to swap out the drive, I don't mind waiting for the raid to rebuild?

[Matt_98]

2 minutes ago, Rohime said:

still not good practice.

 

Anyway ....  this is the stats for my WD Blacks in RAID1 (not 10) so you numbers are not bad but not great either for slower+stripped.

 

 

must be that crap drive, payday needs to hurry up so I can get my reds and blacks

[zMeul]

1 minute ago, Matt_98 said:

yea figured as much (only spare drive I had). how simple is it to swap out the drive, I don't mind waiting for the raid to rebuild?

I would back-up everything the rebuild it from scratch with proper drives

[Rohime]

4 minutes ago, Matt_98 said:

yea figured as much (only spare drive I had). how simple is it to swap out the drive, I don't mind waiting for the raid to rebuild?

if you really trust the RAID software, just "fail" the drive (pull it out) and plug the new one in.   Reboot require if not hot-pluggable.   rebuild the array - and leave the computer idle for as many hours / days as that takes.

[Matt_98]

2 minutes ago, zMeul said:

I would back-up everything the rebuild it from scratch with proper drives

ok, I'm getting some wd blacks on payday and some reds for my server. I'll rebuild the raid after my server is running

[zMeul]

1 minute ago, Matt_98 said:

ok, I'm getting some wd blacks on payday and some reds for my server. I'll rebuild the raid after my server is running

I would get Reds for RAID, not blacks

[Rohime]

4 minutes ago, Matt_98 said:

must be that crap drive, payday needs to hurry up so I can get my reds and blacks

If you have a payday coming up, get SSD's instead.  much better speed.

 

My RAID0 of NVMe SSD's:

 

 

 

You are correct, i am only including that to show off.

[Matt_98]

1 minute ago, zMeul said:

I would get Reds for RAID, not blacks

I'm using reds in my server (which backups my pc nightly) the raid in my pc is just for unimportant files and Powah!!!!

[zMeul]

1 minute ago, Matt_98 said:

I'm using reds in my server (which backups my pc nightly) the raid in my pc is just for unimportant files and Powah!!!!

then why RAID10?

[Rohime]

2 minutes ago, zMeul said:

then why RAID10?

agree - a single SSD would be much better than RAID10 HDD.

[Matt_98]

1 minute ago, Rohime said:

If you have a payday coming up, get SSD's instead.  much better speed.

 

My RAID0 of NVMe SSD's:

 

 

 

You are correct, i am only including that to show off.

 

woa, I dont think I can afford enough ssd's for a 2tb raid

[Matt_98]

4 minutes ago, zMeul said:

then why RAID10?

For better iops, i run a few vm's and I was told raid 10 was good for that

[zMeul]

1 minute ago, Matt_98 said:

For better iops, i run a few vm's and I was told raid 10 was good for that

get a SSD, mate

less risk, better throughput in every possible way

[Rohime]

5 minutes ago, Matt_98 said:

For better iops, i run a few vm's and I was told raid 10 was good for that

That would have been true a couple a years ago.    Standalone SSD is a far better deal today.

[zMeul]

4 minutes ago, Matt_98 said:

For better iops, i run a few vm's and I was told raid 10 was good for that

get a SSD, mate

less risk, better throughput in every possible way

[scottyseng]

11 hours ago, Matt_98 said:

-snip-

I would agree with everyone else, get a SSD for the VMs.

 

As for RAID10, I had four WD 4TB Reds in RAID10, that was around 350 sequential (I forgot the random though) for both read / write. I have six WD 4TB Reds in RAID6 now:

 

and eight WD 4TB Re SAS drives in RAID6: