Re: need SSD RAID controller advice

2015-05-06 Thread ToddAndMargo
On 04/10/2015 05:21 PM, ToddAndMargo wrote: Hi All, I have a customer interested in high end workstation. She wants RAID 1 to protect her drives. She is also interested in Solid State Drives. (And she knows the difference between RAID and Backup.) What host controller would you guys recommend f

Re: need SSD RAID controller advice

2015-05-06 Thread Jeff Siddall
On 05/06/2015 09:33 PM, ToddAndMargo wrote: Thank you. I will have to get over my phobia of software RAID. FWIW I have used SW RAID1 for years (maybe decades by now) on all sorts of systems. It has saved me many times and never burned me. If you are going to do anything in SW RAID1 is as e

Re: need SSD RAID controller advice

2015-05-06 Thread ToddAndMargo
On 05/06/2015 05:22 PM, Konstantin Olchanski wrote: On Wed, May 06, 2015 at 04:46:27PM -0700, ToddAndMargo wrote: ... that I ... get the most reliable SSD I can find and talk the customer out of RAID. This is bad thinking. "most reliable" does not mean "will never fail". (leaving aside the

Re: need SSD RAID controller advice

2015-05-06 Thread Konstantin Olchanski
On Wed, May 06, 2015 at 04:46:27PM -0700, ToddAndMargo wrote: > > ... that I ... get the most reliable SSD I can find and talk > the customer out of RAID. > This is bad thinking. "most reliable" does not mean "will never fail". (leaving aside the question on how you can tell which brand is more

Re: need SSD RAID controller advice

2015-05-06 Thread Kevin K
> On May 6, 2015, at 6:31 PM, Vladimir Mosgalin > wrote: > > Alternative to TRIM-aided GC is Idle Time Garbage Collection (which you > could see on Plextor), which actively scans data in background, finds > empty blocks (zeroes) and marks them as free. Well probably more > complicated than that

Re: need SSD RAID controller advice

2015-05-06 Thread ToddAndMargo
On 05/06/2015 04:31 PM, Vladimir Mosgalin wrote: Hi ToddAndMargo! On 2015.05.05 at 23:05:36 -0700, ToddAndMargo wrote next: Hi Vladimir, I have look all over Intel's specs for their new SSD DC S3510 series SSDs (older drives are harder to find): http://www.intel.com/content/www/us/en/solid

Re: need SSD RAID controller advice

2015-05-06 Thread ToddAndMargo
On 05/06/2015 04:32 PM, Vladimir Mosgalin wrote: Hi ToddAndMargo! On 2015.05.06 at 00:48:30 -0700, ToddAndMargo wrote next: http://www.intel.ie/content/dam/www/public/us/en/documents/white-papers/ssd-dc-s3500-workload-raid-paper.pdf The system used for RAID 1 testing include the foll

Re: need SSD RAID controller advice

2015-05-06 Thread Vladimir Mosgalin
Hi ToddAndMargo! On 2015.05.06 at 00:48:30 -0700, ToddAndMargo wrote next: > http://www.intel.ie/content/dam/www/public/us/en/documents/white-papers/ssd-dc-s3500-workload-raid-paper.pdf > > > The system used for RAID 1 testing include the following: > • LSI MegaRAID 9265-8i* controller

Re: need SSD RAID controller advice

2015-05-06 Thread Vladimir Mosgalin
Hi ToddAndMargo! On 2015.05.05 at 23:05:36 -0700, ToddAndMargo wrote next: > Hi Vladimir, > > I have look all over Intel's specs for their new SSD DC S3510 > series SSDs (older drives are harder to find): > > http://www.intel.com/content/www/us/en/solid-state-drives/ssd-dc-s3510-spec.html > > Th

Re: need SSD RAID controller advice

2015-05-06 Thread ToddAndMargo
On 05/05/2015 11:05 PM, ToddAndMargo wrote: On 04/14/2015 02:29 AM, Vladimir Mosgalin wrote: Hi ToddAndMargo! On 2015.04.13 at 18:26:49 -0700, ToddAndMargo wrote next: -T Wonder if there are any enterprise level SSD's that don't need TRIM? Tons. All Hitachi SSDs, OCZ Interpid and Saber,