Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




22690 posts

Uber Geek

Trusted
Lifetime subscriber

#193792 24-Mar-2016 13:36
Send private message

Hi. 

 

Any of you guys/girls deployed these servers, who have some commentary about performance in RAID 5, with Zero cache controller?

 

 

 

I am a little worried it will reduce the performance to that of a decent sata drive!

 

 

 

 


Create new topic
2795 posts

Uber Geek

Trusted
Lifetime subscriber

  #1519068 24-Mar-2016 14:06
Send private message

No experience with this model though we use Proliant servers almost exclusively.

 

RAID5 on zero cache sounds like it is likely to be horrible.  We moved away from RAID5 some years ago and do a RAID10 for most installations these days (on cached and non-cached controllers.  It's performance is not fabulous on zero cache controllers of course but is fine for light workloads.  No chance the client will stretch to a small cache module?

 

https://www.storagecraft.com/blog/raid-performance/ 





"4 wheels move the body.  2 wheels move the soul."

“Don't believe anything you read on the net. Except this. Well, including this, I suppose.” Douglas Adams

1015 posts

Uber Geek

Trusted

  #1519590 25-Mar-2016 12:44
Send private message

If you can afford it go with the ML3xx or DL3xx range. They will be far superior.


 
 
 
 


2436 posts

Uber Geek


  #1521975 29-Mar-2016 07:32
Send private message

RAID5 isn't a good idea on SATA disk over 1TB either. RAID6 or RAID10 are your better options. 




22690 posts

Uber Geek

Trusted
Lifetime subscriber

  #1522018 29-Mar-2016 08:57
Send private message

darylblake:

 

If you can afford it go with the ML3xx or DL3xx range. They will be far superior.

 

 

 

 

Yes, 99% of what we sell are ML350's but for a very small group of customers we consider other options for budgetary reasons.

 

Traditionally I wouldn't touch a SATA Server with a 50 Foot Barge Pole, connected to another 75 Foot barge pole, but this being a SAS server, I imagine performance would be reasonably better. 

 

I am really just trying to determine the real world performance of it with zero cache.


1508 posts

Uber Geek


  #1522082 29-Mar-2016 09:39
Send private message

What sort of disks are you running? 10K sas, 7.2K NL sas? what size? what sort of workload? lots of writes, mostly reads? What sort of perf are they requiring on site?

 

We have an older ML1xx server but with a cheap zero-cache Intel raid card and 7.2K sata disks, perf is OK, not sparkling, but acceptable for cheap file storage. It is mostly large VHD's for backup and a bunch of install files. From memory we get between 80MB/s and 100MB/s write and about the same for read. If using 10K sas, I would expect 100MB/s write and 150MB/s read. A bit better than a 7.2K sata disk, but as you say, not as good as a 10K sas.

 

Can you go with larger disks and use a raid 1 mirror instead of 3 disks and raid 5? Could theoretically have better perf than a raid 5 solution due to not requiring parity calculations for every write. Will also have much faster rebuilds in the event of a disk failure.





Try Vultr using this link and get us both some credit:

 

http://www.vultr.com/?ref=7033587-3B




22690 posts

Uber Geek

Trusted
Lifetime subscriber

  #1522083 29-Mar-2016 09:41
Send private message

Hi. 

 

File and Print is the main purpose, with Exchange. They are 10K SAS 300GB Drives.

 

The drives are bundled so not really an option to change.


2795 posts

Uber Geek

Trusted
Lifetime subscriber

  #1523144 31-Mar-2016 09:56
Send private message

We have a couple of smaller sites running SBS2011 incl Exchange 2010 for 10 users on zero cache RAID10 and 7K2 SATA drives.  Performance is not stellar by any means but is perfectly acceptable for the end users.  No booting speed records are in any danger.

 

Can you offload the email workload to Office 365 using $5 per mailbox accounts?  It would be nice to to hammer a zero-cache system with an Exchange database.





"4 wheels move the body.  2 wheels move the soul."

“Don't believe anything you read on the net. Except this. Well, including this, I suppose.” Douglas Adams

Create new topic





Twitter and LinkedIn »



Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

National Institute for Health Innovation develops treatment app for gambling
Posted 6-Jul-2020 16:25


Nokia 2.3 to be available in New Zealand
Posted 6-Jul-2020 12:30


Menulog change colours as parent company merges with Dutch food delivery service
Posted 2-Jul-2020 07:53


Techweek2020 goes digital to make it easier for Kiwis to connect and learn
Posted 2-Jul-2020 07:48


Catalyst Cloud launches new Solutions Hub to support their kiwi Partners and Customers
Posted 2-Jul-2020 07:44


Microsoft to help New Zealand job seekers acquire new digital skills needed for the COVID-19 economy
Posted 2-Jul-2020 07:41


Hewlett Packard Enterprise introduces new HPE GreenLake cloud services
Posted 24-Jun-2020 08:07


New cloud data protection services from Hewlett Packard Enterprise
Posted 24-Jun-2020 07:58


Hewlett Packard Enterprise unveils HPE Ezmeral, new software portfolio and brand
Posted 24-Jun-2020 07:10


Apple reveals new developer technologies to foster the next generation of apps
Posted 23-Jun-2020 15:30


Poly introduces solutions for Microsoft Teams Rooms
Posted 23-Jun-2020 15:14


Lenovo launches new ThinkPad P Series mobile workstations
Posted 23-Jun-2020 09:17


Lenovo brings Linux certification to ThinkPad and ThinkStation Workstation portfolio
Posted 23-Jun-2020 08:56


Apple introduces new features for iPhone iOS14 and iPadOS 14
Posted 23-Jun-2020 08:28


Apple announces Mac transition to Apple silicon
Posted 23-Jun-2020 08:18



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.