Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Storage Space Configuration

Posted on 2016-11-19
6
Medium Priority
?
124 Views
Last Modified: 2016-11-19
Windows 10 to be used predominantly as a media server but also a place to store general data files (word / excel etc.) documents. The host has an SSD drive which is used to boot the OS and then there's 4 x 4TB drives which can be used to store all the data.

I need some resilience for all of the data, but unsure of whether to carve up the storage so that there's a mirrored pool for the general file data (let's say just 100GB) and the rest to store the media files (TV, films etc). The media files pool I'm thinking of setting up as parity because it will provide more capacity than a mirror and performance will be OK for large, sequential reads.

Any ideas on the above configuration? Anybody else done something similar?
0
Comment
Question by:Hypervizor
6 Comments
 
LVL 59

Expert Comment

by:Cliff Galiher
ID: 41894238
Use mirrored. Parity really does kill performance, even with large sequential reads. It's really only suitable for "cold" data, which is generally only a business issue.
0
 

Author Comment

by:Hypervizor
ID: 41894246
Thanks for the quick response. I would prefer mirroring, but it absolutely crushes my available disk capacity. Tests I'd undertaken didn't show a massive difference between mirroring on parity when I configured them for both.
0
 
LVL 70

Accepted Solution

by:
garycase earned 2000 total points
ID: 41894249
Performance isn't all that bad with parity as long as you have a UPS and "tell" Windows 10 that the storage space is power protected.

e.g. use the following command:

Set-StoragePool -FriendlyName Backup -IsPowerProtected $true

This makes a BIG difference in the write speeds :-)

You can, of course, use the parameter even if you don't have a UPS, but that's NOT something I'd recommend, as you could then lose a significant amount of data if you have a power outage while writing to the space.
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 

Author Comment

by:Hypervizor
ID: 41894266
@garycase - thanks for that. I wasn't aware of that command. What sort of performance increases are we talking about and what's happening in the background to make it perform that much faster just because you've got power protection? I'm assuming it's some sort of write caching?
0
 
LVL 84

Expert Comment

by:David Johnson, CD, MVP
ID: 41894305
yse if powerprotected it is caching the data in ram
0
 
LVL 70

Expert Comment

by:garycase
ID: 41894349
As David noted, it caches the data in RAM as long as it "knows" it can safely catch up because the system has power protection.   It makes writes SIGNIFCANTLY faster -- I saw more than a 3x improvement with the power protected parameter set to True.
0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A small collection of useful tips and tricks for Windows 10 users that I decided to write as a result of recent questions that were asked and answered at Experts Exchange. Two short video tutorials included. Enjoy..
Windows 10 Creator Update has just been released and I have it working very well on my laptop. Read below for issues, fixes and ideas.
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
Suggested Courses

963 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question