The current proposal is to replace allWith the [[ https://phabricator.wikimedia.org/T209615 | recent refresh of the Samsung SSDsrestbase200{1,2,3,4,5,6} ]], while simultaneously expanding the RESTBase cluster to 9.6T/host. T205092 proposes to piggy-back this on the already planned (routine) replacement of restbase200[1-6]. Arrangements for the remaining 18 hosts still need to be madethere are 11 hosts remaining that are populated with the problematic Samsung SSDs. Replacing the SSDs themselves is of course an option, but since all of the hosts are either past their //supported until// date, or are within 6 months of it, I first propose replacing them entirely.
What we need specifically likely depends upon whether it makes more sense to replace the entire host (for example if a lease or warranty is about to expire).# Standard host configuration
When replacing the host does not make sense, the final outcome depends upon whether the machine is equipped with Samsung SSDs. Those //with// Samsung SSDs should have them replaced with 5 1.92T devices. Those //without// (those with Intel or HP SSDs), can have an additional >= 3.2T of SSDs provisioned.
(NOTE) Someone with access to information on the status of these 18 machines (lease v purchase, and the remaining time before routine replacement), will need to help out from here.
| Host | Storage |
| ------ | -------- |* PowerEdge R440
| restbase2007 | 5 x Samsung 1T SSD |* 2 @ Intel Xeon Silver 4114 2.2G, 10C/20T, 9.6GT/s , 14M Cache, Turbo, HT (85W) DDR4-2400
| restbase2008 | 5 x Samsung 1T SSD |* 4 @ 32GB RDIMM 2666MT/s Dual Rank (128G)
| restbase2009 | 4 x HP 1.6T SSD |
| restbase2010 | 4 x Intel 1.6T SSD |
| restbase2011 | 4 x Intel 1.6T SSD* 3 @ 1.92TB SSD SATA Read Intensive 6Gpbs 512n 2.5in Hot-plug Drive, Hawk-M4R,1 DWPD,3504 TBW
(NOTE) See also: {T210884}
# Hosts w/ Samsung SSDs
## Codfw
| Host | Supported until |
| restbase2012 | 4 x Intel 1.6T SSD || ------ | -------- |
| restbase12007 | 5 x Samsung 1T SSD |2019-04-22 |
| restbase1010 | 5 x Samsung 1T SSD |2008 | 2019-04-22 |
## Eqiad
| Host | Supported until |
| restbase1011 | 5 x Samsung 1T SSD || ----- | ---- |
| restbase1016 | 4 x Intel 1.6T SSD |07 | 2018-05-28 |
| restbase1008 | 5 x Samsung 1T SSD |2018-05-28 |
| restbase1012 | 5 x Samsung 1T SSD |09 | 2018-05-28 |
| restbase1017 | 4 x Intel 1.6T SSD |0 | 2019-02-23 |
| restbase1013 | 5 x Samsung 1T SSD |1 | 2019-02-23 |
| restbase1009 | 5 x Samsung 1T SSD |12 | 2019-02-23 |
| restbase1014 | 5 x Samsung 1T SSD |3 | 2019-02-23 |
| restbase1015 | 5 x Samsung 1T SSD |4 | 2019-02-23 |
| restbase1018 | 4 x Intel 1.6T SSD |5 | 2019-02-23 |