Solved

SAS reasonable price and reliable

Posted on 2011-09-13
7
439 Views
Last Modified: 2012-08-13
I would like to take a progress database and place it on 4 solid state drives in raid 10.  All the bays in my power edge 2950 are full and they are 3.5" drives anyway so replacing them is not an option.  I would just like to know what is a reliable yet reasonably price sas solution to place my solid state drives in to run my database from.  My database is only 4 gigs in size but would like the drive volume to be at least 50 gigs by the time the raid is setup.  Any ideas or recommendations would be greatly appreciated.
0
Comment
Question by:fasse
  • 4
  • 2
7 Comments
 
LVL 18

Expert Comment

by:BigSchmuh
ID: 36535529
Why don't you mount your db on a 8GB server to allow all data to stay in RAM ?
If your current Progress release handles only a 32bit process, you should try to upgrade to a 64bit one (I think it's 64bit compatible since OpenEdge 10.1b)
0
 
LVL 69

Expert Comment

by:Callandor
ID: 36535833
As far as I know, SSDs come with SATA interfaces, but if you have a SAS controller, they will be compatible.  There are enterprise class SSDs and consumer grade SSDs, with prices that are very different, so you will have to decide which you want to go with.  This paper describes the reasons: http://smarterquestions.org/wp-content/uploads/2011/06/SSD-Enterprise-Class-white-paper.doc  Also look at http://www.slideshare.net/calypsori/enterpriseclass-solid-state-drives

Enterprise class SSDs are on the order of thousands of dollars http://www.newegg.com/Store/SubCategory.aspx?SubCategory=2021&Tid=11691&name=Enterprise-SSD, while consumer grade SSDs are in the order of hundreds of dollars.  You can buy PCIe slot mounted drives, internal drives or external drives.  A single 60GB consumer grade SSD costs about $130, but SSDs in RAID arrays do not have TRIM support from the OS yet, which is critical for maximum performance.
0
 
LVL 18

Expert Comment

by:BigSchmuh
ID: 36535884
All sectors in database files are UPDATED where TRIM only cares of informing the SSD controller of DELETED sectors. You should only take care of storing the LOG files out of the SSD to avoid needing this TRIM support.

Last one, if you can't upgrade to a 64bit OpenEdge release, you may install a PCIe x8 Enterprise SSD like the OCZ VeloDrive
0
NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

 

Author Comment

by:fasse
ID: 36536333
I know this is probably not the best way to look at this but is there somewhat of a equaling factor of quality vs quantity.

1 or 2 enterprise drives thousands.
4 or more standard in raid 10 a $1000

I have thought about running the whole db in ram but our consultant said that we would truly see a 10X increase in speed if we can get the software and the db installed to a solid state drive.


0
 
LVL 18

Accepted Solution

by:
BigSchmuh earned 500 total points
ID: 36536692
Well, if all your data are in RAM, a "10x increase in speed" is going to be a small increase.

Appart from that, if you already have a 64bit edition of OpenEdge, I would suggest 2 scenario:
1/ All in RAM
-Upgrade to 8GB minimum
-Allocating enough memory for all the data + index + 20% to stay in RAM
-Arrange a warmup script (a simple "select *" on all tables) to allow filling up all the cache

2/ 2x SSD in a PCIe slot with LOGs on existing HDD
-Check the form factor compatibility for 2x SSD PCIe (with riser card ?)
-Add 2x SSD PCIe like the OCZ RevoDrive X2 100GB $360
-Move your data, index, temp files on it
0
 

Author Comment

by:fasse
ID: 36537234
We have been thinking about this more and more.  We have a poweredge 2950 with scsi backplane.  Would it be possible to change out the backplane and install a sata one that would then allow us to use the 2.5"  ssd in our drive cage on the server.  We are looking at this as an opportunity to upgrade the drive for our operating system as well.  We would change out all six drives and replace with ssd.  I have seen the backplanes on ebay for 100 or less like the ones listed below.  Is this all we would have to change on the server side to be able to use the ssd's.  This machine is a quad core, quad processor with lots of power.  We do hate to use an aftermarket device that would not give us the throughput that the machine is capable of.  

ebay 2950 sata backplane
0
 
LVL 18

Expert Comment

by:BigSchmuh
ID: 36537250
My 2 suggestions (1-RAM or 2-SSD on PCIe) above doesn't require any change to the backplane or current HDD...
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

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

Suggested Solutions

Moving your enterprise fax infrastructure from in-house fax machines and servers to the cloud makes sense — from both an efficiency and productivity standpoint. But does migrating to a cloud fax solution mean you will no longer be able to send or re…
Finding original email is quite difficult due to their duplicates. From this article, you will come to know why multiple duplicates of same emails appear and how to delete duplicate emails from Outlook securely and instantly while vital emails remai…
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 …
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…

803 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