This is the second time I have had EMA technical advisories recently regarding issues with 15k SAS disks. The first one I wrote about here. It doesn’t sound quite as serious as the last one (OMG, DATA LOSS), but worthy of a look and fix. Details; and full link here and excerpt just below “” EMC Technical […]
Following on from yesterday’s EOY backup topic for ESXi, today I’ll document how to automate the backup of your VNX & VNX2 Array configurations. As usual, I want this to be automated, set-and-forget and reliable. A combination of NavisecCLI and Powershell works beautifully for this. Without any doubt, the best documentation or config backup tool is […]
Unisphere can sometimes be a fickle beast, particularly with java versions and compatibility. I had a very strange issue with Unisphere a couple of weeks ago where it would not allow any logins. Regardless of trying to login to the Control Station or either of the SPs directly, using LDAP, local or global users, the […]
“Enablers” in EMC parlance, are small installable files that unlock licensed features on your array. These include FAST, FAST cache, Mirrorview etc. To see which enablers are installed on your Array, you can use naviseccli : naviseccli -h arraysp ndu -list otherwise you can check from Unisphere on the Software tab under “System Properties”. Many […]
The ability to do Performance analysis is an essential requirement for an Admin. Being able to detect bottlenecks that are contributing to degraded performance can have an immediate impact in saving business $$ and remaining agile. Of equal importance is capacity planning and trending. For EMC kit, the old failthful ‘Analyzer’ application is the bread […]
This weeks HEADS UP ! and this time for us VNX2 users, courtesy of EMC TA email Seeing “Potential….Data Loss” in any ETA for equipment I admin raises my “Be Alert but not alarmed” counter. Full Release here This only affects upgrades to 05.33.000.5.074 which is the latest (Oct) Block OE and only if the “NDU […]
This weeks HEADS UP ! and this time for us VNX2 users, courtesy of EMC TA email Seeing “Potential….Data Loss” in any ETA for equipment I admin raises my “Be Alert but not alarmed” counter. Full Release here This only affects upgrades to 05.33.000.5.074 which is the latest (Oct) Block OE and only if the “NDU […]
Anyone who has worked at length with EMC Clariion or VNX would be familiar with the good old NAR files. These are the important little files where statistics about array performance are saved/archived, so you can them open them in Analyzer and review the massive amount of performance metrics and data stats from your array. […]
You’ve paid for your maintenance right ? Take advantage of it and keep up to date with your platform versions. Open an SR and schedule EMC to do an upgrade via RCM. They have a whole team who do array upgrades all day everyday. Keep them busy. Why ? Keep on top of fixes and […]