2023 equipment purchase:

 Added 11x R6525 with AMD 7443 (96 HT/node)
 measured HEPscore= 17.48 HS06= 17.75
 total added: 1056 cores, 18.5k HEPscore / 18.7k HS06
 note: new PERC H355 not supported by OMSA on CentOS7

 Retired 32x 24HT R410s (768 cores / 6.6k HS06) 9.84
 Retired 24x 32HT R620s (736 cores / 8.1k HS06) 11.03
 Retired  5x 40HT R620s (200 cores / 2.1k HS06) 10.68
(retirements above may not be exact, will correct after meeting)

 Total Change expected about neutral   

 Also added 7x of 12x R740xd2 at UM
 (each with 24x 20TB disks= 370 TB usable in dcache)
 4x R740xd2 at MSU waiting on network config (promised for tonight)
 The other 5x R740xd2 at UM to compare RAID6 to JBOD/raidz3

 Retired 4x MD3xxx shelves of 8T disks (~1.4 PB)

 Waiting on MSU to be deployed before sitewide space re-balance
 Did NOT YET increase dcache advertised space
 Ultimately the grand total change will be about +4.5 PB

Events:

 10-May: ZFS problem on NVMe mirror holding dcache database (Ticket 161890).
 After file system recovery one postgres file remained flagged as possibly corrupted.
 Recovered from backup/mirroring node. 

 18-May: MSU Data Center heats up during regular/yearly Fire Alarm testing.
 All newer/hotter Worker Nodes (C6420s and R6525s) shut themselves down.
 Unexpected. Could be operator error but no official report yet.

For fun/curiosity: coarse comparison HS06 vs HEPscore (as of May 2023)

|          |    6132 |   6240R |    7302 |    7413 |    7443 |
|          | 2.60GHz | 2.40GHz | 3.00GHz | 2.65GHz | 2.85GHz |
| Tot HT   |      56 |      96 |      64 |      96 |      96 |
|----------+---------+---------+---------+---------+---------|
| HS06/HT  |   13.64 |   10.94 |   16.42 |   17.28 |   17.75 |
| HEPS/HT  |   13.16 |   12.22 |   16.17 |   16.97 |   17.48 |
|----------+---------+---------+---------+---------+---------|

note: HEPscore measured as average of 2 runs on only 1 node each 
(except 7443 with 2 runs on 5 nodes)
HS06 taken from US facility spreadsheet for AGLT2.