8200 System write cache availability is degraded

[koljsch1]

After replacing the faulty node, the error “System write cache availability is degraded” appeared. What is the problem, do I understand correctly that the chassis needs to be replaced?

Log:
StoreServ cli% shownode
Control Data Cache
Node ----Name---- -State- Master InCluster -Service_LED ---LED--- Mem(MB) Mem(MB) Available(%)
0 XXXXXXXXXX-0 OK Yes Yes Off GreenBlnk 16384 16384 0
1 XXXXXXXXXX-1 OK No Yes Off GreenBlnk 16384 16384 0


StoreServ cli% checkhealth -svc -detail
Checking alert
Checking ao
Checking cabling
Checking cage
Checking cert
Checking dar
Checking date
Checking file
Checking fs
Checking host
Checking hostkeys
Checking ld
Checking license
Checking network
Checking node
Checking pd
Checking pdch
Checking port
Checking qos
Checking rc
Checking snmp
Checking task
Checking vlun
Checking vv
Checking sp
Component -----------Summary Description----------- Qty
Alert New alerts 2
Network Too few working admin network connections 1
Node controlrecoveryauth issues 1
Node Nodes cache availability is degraded 2
RC Structure Incompatibility 1
-------------------------------------------------------
5 total 7

Component -Identifier- ----------------------------Detailed Description-----------------------------
Alert sw_system System write cache availability is degraded.
Alert hw_cage:0 Cage cage0 (0x50050CC106235E0A) backup power is not protecting the enclosure.
Network -- No nodes have working admin network connections
Node All Nodes with strong password disable file
Node node:0 Only 0% of node cache memory is available
Node node:1 Only 0% of node cache memory is available
RC Structure Remote Copy internal structure is incompatible.
----------------------------------------------------------------------------------------------------
7 total

StoreServ cli% showcage -d
Id Name LoopA Pos.A LoopB Pos.B Drives Temp RevA RevB Model FormFactor
0 cage0 0:1:1 0 1:1:1 0 8 31-32 409b 409b DCN2 SFF

-----------Cage detail info for cage0 ---------

Position: ---
OverallState: Normal

Interface Board Info Card0 Card1
Firmware_status Current Current
Product_Rev 409b 409b
State(self,partner) OK,OK OK,OK
VendorId,ProductId XYRATEX,DCN2 XYRATEX,DCN2
Master_CPU No Yes
SAS_Addr 5001438030F5953E 5001438030F5953E
Link_Speed(DP1,Internal) Unknown,12.0Gbps Unknown,12.0Gbps
Locate Off Off

PS PSState ACState DCState Fan State Fan0_Speed Fan1_Speed Locate
ps0 OK OK OK OK Low Low Off
ps1 OK OK OK OK Low Low Off


-------------Drive Info-------------- --PortA-- --PortB--
Drive DeviceName State Temp(C) LoopState LoopState
0:0 50011731013BC1A0 Normal 32 OK OK
1:0 50011731011405AC Normal 32 OK OK
2:0 5001173101002D0C Normal 32 OK OK
3:0 5001173101140E48 Normal 32 OK OK
4:0 50011731011B5ADC Normal 32 OK OK
5:0 50011731013495BC Normal 32 OK OK
6:0 500117310118C4B8 Normal 31 OK OK
7:0 5001173101310EF0 Normal 31 OK OK

[MammaGutt]

Alert hw_cage:0 Cage cage0 (0x50050CC106235E0A) backup power is not protecting the enclosure.
---------------------------------------------------------------
PS PSState ACState DCState Fan State Fan0_Speed Fan1_Speed Locate
ps0 OK OK OK OK Low Low Off
ps1 OK OK OK OK Low Low Off

Makes no sense. What does «showbattery» say?