HPE Storage Users Group

I rebooted the controller 1, the 0 stayed the master with no outage, came back, still no write cache. unfortunately we do not have HPE support anymore, so I cannot ask. I will try to reboot controller 0, and the whole storage during the holidays and as a solution put an SSD appliance for the problem...

All storage systems I know of have write cache. Without it, the write performance is usually horrible. Write cache is disabled when system is running on only one node. The checkhealth gives me no real clue as to why it has no write cache…. Thanks for the hint. I see, on replacing the Controller 1...

You might think so, but it states 0% write cache. What does checkhealth -svc -detail Say? Hi MammaGutt, Thanks for your reply. I read that 7200 2 Controller Setups have no write cache. We have a 4 Node 7400 3PAR and there shownode says 100%. How can I check if there is a write cache on the 7200? Th...

Hi all, I have a 3PAR 7200 with 2 Controllers. Controller 1 had a drive issue and was replaced. Controller 0 is now master. After replacement before 3 weeks we noticed pretty bad read/write latency up to 400ms-1000ms one a Filer VM. tunesys, tuneld had no effect. I read other posts about write cache...

Hello, thanks for your reply. I can log on with SSH. Yes the SP worked, another site had the same error at the same time with invalid credentials, but there I could readd the StoreServ to the SP with no issues.

I check the redeploy and let you know. Thanks again!
Regards
Ferenc

Hello all, Thanks for all the helpful posts, this is my first time. I noticed one 7400 StoreServ was disconnected in the Service Console, saying invalid credentials. The solution is to remove and readd. I tried with 3parcli and 3paradmin, but fails at registering credentials. This worked on a 7200 3...