Re: Using RAM instead of disk for build servers (was: Re: Build servers offline due to failed SSD)

2021-03-15 Thread Ryan Schmidt
On Mar 15, 2021, at 09:50, Steven Smith wrote: > SSD RAID offers speed and fault tolerance. Sure. That either wasn't available or was not within what I was willing to spend in 2016 when I set up this system. > Simple options that are tolerant to a single disk failure are: > > •

Re: Using RAM instead of disk for build servers (was: Re: Build servers offline due to failed SSD)

2021-03-15 Thread Dave Horsfall
On Mon, 15 Mar 2021, Daniel J. Luke wrote: Thanks for including this information - it's similar to experience I've had with SSDs for $work. I'd be really surprised if we care about builds on the xserves in 8-10 years (given our previous experience with the ppc to x86 transition). Somewhat

Re: Using RAM instead of disk for build servers (was: Re: Build servers offline due to failed SSD)

2021-03-15 Thread Daniel J. Luke
On Mar 14, 2021, at 6:38 PM, Ryan Schmidt wrote: > As far as longevity, the previous set of 3 500 GB SSDs I bought for these > servers in 2016 lasted 4-5 years. They were rated for 150 TBW (terabytes > written) and actually endured around 450 TBW by the time they failed, or 3 > times as long

Re: Using RAM instead of disk for build servers (was: Re: Build servers offline due to failed SSD)

2021-03-15 Thread Daniel J. Luke
On Mar 14, 2021, at 6:38 PM, Ryan Schmidt wrote: > As far as longevity, the previous set of 3 500 GB SSDs I bought for these > servers in 2016 lasted 4-5 years. They were rated for 150 TBW (terabytes > written) and actually endured around 450 TBW by the time they failed, or 3 > times as long

Re: Using RAM instead of disk for build servers (was: Re: Build servers offline due to failed SSD)

2021-03-15 Thread Steven Smith
SSD RAID offers speed and fault tolerance. Simple options that are tolerant to a single disk failure are: Free/one extra SSD: Use macOS Disk Utility to RAID 1 together two smaller, inexpensive SSD drives for 100% redundancy. OWC ThunderBay 4 Mini, $279: Use macOS Disk Utility to RAID 1 together

Re: Using RAM instead of disk for build servers (was: Re: Build servers offline due to failed SSD)

2021-03-14 Thread Balthasar Indermuehle
Hi Ryan, thanks for your detailed response. I hadn't thought of some of the build intricacies you mention. Let alone the upcoming silicon change and phasing out of x86. Sounds like your approach is a good balance for longevity, performance, and cost. Cheers Balthasar On Mon, 15 Mar 2021 at

Re: Using RAM instead of disk for build servers (was: Re: Build servers offline due to failed SSD)

2021-03-14 Thread Ryan Schmidt
On Mar 14, 2021, at 06:11, Balthasar Indermuehle wrote: > I used to run mac servers in what now can only be described as the days of > yore... when a 32GB RAM bank cost a lot more than a (spinning) disk - and > those were expensive then too. SSDs were not here yet. I haven't checked > pricing