Re: software or hardware RAID?

2019-03-28 Thread Rory Campbell-Lange
On 28/03/19, Perumal Raj (peruci...@gmail.com) wrote: > On Sat, Mar 23, 2019 at 3:12 PM Kenneth Marshall wrote: > > On Sat, Mar 23, 2019 at 12:09:11PM +, Rory Campbell-Lange wrote: > > > On 17/03/19, Rory Campbell-Lange (r...@campbell-lange.net) wrote: > > > > We aren't sure whether to use so

Re: software or hardware RAID?

2019-03-28 Thread Perumal Raj
Hi All Just would like to know conclusion here , What is best RAID method (Software Or Hardware) for Postgres DB and what level ? Thanks, Raj On Sat, Mar 23, 2019 at 3:12 PM Kenneth Marshall wrote: > On Sat, Mar 23, 2019 at 12:09:11PM +, Rory Campbell-Lange wrote: > > On 17/03/19, Rory

Re: software or hardware RAID?

2019-03-23 Thread Kenneth Marshall
On Sat, Mar 23, 2019 at 12:09:11PM +, Rory Campbell-Lange wrote: > On 17/03/19, Rory Campbell-Lange (r...@campbell-lange.net) wrote: > > We aren't sure whether to use software MDRaid or a MegaRAID card. > > > > We're buying some new Postgres servers with > > > > 2 x 240GB Intel SSD S4610

Re: software or hardware RAID?

2019-03-23 Thread Rory Campbell-Lange
On 23/03/19, Hans Schou (hans.sc...@gmail.com) wrote: > On Sun, Mar 17, 2019 at 11:54 PM Rory Campbell-Lange < > r...@campbell-lange.net> wrote: > > > We aren't sure whether to use software MDRaid or a MegaRAID card. > > Never go with hardRaid. I have had a breakdown on a hardware RAID and as >

Re: software or hardware RAID?

2019-03-23 Thread Hans Schou
On Sun, Mar 17, 2019 at 11:54 PM Rory Campbell-Lange < r...@campbell-lange.net> wrote: > We aren't sure whether to use software MDRaid or a MegaRAID card. > Never go with hardRaid. I have had a breakdown on a hardware RAID and as it was special and not off-the-shelf, I could not move the disk to

Re: software or hardware RAID?

2019-03-23 Thread Andy Colson
On 3/23/19 11:51 AM, Rory Campbell-Lange wrote: On 23/03/19, Andy Colson (a...@squeakycode.net) wrote: On 3/23/19 7:09 AM, Rory Campbell-Lange wrote: On 17/03/19, Rory Campbell-Lange (r...@campbell-lange.net) wrote: ... We're buying some new Postgres servers with 2 x 240GB Intel SSD S4

Re: software or hardware RAID?

2019-03-23 Thread Rory Campbell-Lange
On 23/03/19, Andy Colson (a...@squeakycode.net) wrote: > On 3/23/19 7:09 AM, Rory Campbell-Lange wrote: > > On 17/03/19, Rory Campbell-Lange (r...@campbell-lange.net) wrote: ... > > > We're buying some new Postgres servers with > > > > > > 2 x 240GB Intel SSD S4610 (RAID1 : system) > > >

Re: software or hardware RAID?

2019-03-23 Thread Charles Martin
On Sat, Mar 23, 2019 at 9:40 AM Andy Colson wrote: > On 3/23/19 7:09 AM, Rory Campbell-Lange wrote: > > On 17/03/19, Rory Campbell-Lange (r...@campbell-lange.net) wrote: > >> We aren't sure whether to use software MDRaid or a MegaRAID card. > >> > >> We're buying some new Postgres servers with >

Re: software or hardware RAID?

2019-03-23 Thread Andy Colson
On 3/23/19 7:09 AM, Rory Campbell-Lange wrote: On 17/03/19, Rory Campbell-Lange (r...@campbell-lange.net) wrote: We aren't sure whether to use software MDRaid or a MegaRAID card. We're buying some new Postgres servers with 2 x 240GB Intel SSD S4610 (RAID1 : system) 4 x 960GB Intel SS

Re: software or hardware RAID?

2019-03-23 Thread Rory Campbell-Lange
On 17/03/19, Rory Campbell-Lange (r...@campbell-lange.net) wrote: > We aren't sure whether to use software MDRaid or a MegaRAID card. > > We're buying some new Postgres servers with > > 2 x 240GB Intel SSD S4610 (RAID1 : system) > 4 x 960GB Intel SSD S4610 (RAID10 : db) > > We'll be usi

software or hardware RAID?

2019-03-17 Thread Rory Campbell-Lange
We aren't sure whether to use software MDRaid or a MegaRAID card. We're buying some new Postgres servers with 2 x 240GB Intel SSD S4610 (RAID1 : system) 4 x 960GB Intel SSD S4610 (RAID10 : db) We'll be using Postgres 11 on Debian. The MegaRAID 9271-8i with flash cache protection is ava