Author Archive
How to live with disabled disks
Recently, I was working with a customer’s Sun StorEdgeTek 2540 array which mysteriously had all twelve disks in disabled state. Details Name: t85d01 ID: Tray.85.Drive.1 Array: Array Type: 2540 Tray: 85 Slot Number: 1 Role: Unassigned Virtual Disk: – State: Disabled Status: Optimal Capacity: 279.396 GB Type: SAS Speed (RPM): 15000 RPM Firmware: SA04 Serial […]
Brendan Gregg talks about DTrace
Another fantastic presentation from Brendan and just like all the previous ones it’s a must seen video
The end of “Fair Play”
After Theirry’s handball no trust left neither in pompous gentry in FIFA nor in their already fscked slogan. It’s such a shame…
Plugging HP-UX into SAN
Our task for today is to connect HP-UX (11.31 release) to MSA2312fc through SAN with two Brocade switches in between. First, we need to find out all FC cards installed in our server and once we have that piece of information we could dig for WWN numbers to map them latter to the disk array. […]
Stranger in HP-UX
For the last couple of days I’ve been heavily playing with HP-UX, one of the unknown and never seen operating system. That’s true – I’ve never touch it before. But these days are over and now I’m overfilled with new experience and… mixed fillings. You see, on the one hand it’s UNIX and most of […]
Little Shop of Performance Horrors
Watch a fantastic presentation by Brendan Gregg who dwells upon different performance aspects and issues with real life examples. This 2.5 hours discussion has been split into three parts: Part 1,
Replacing broken disk in SVM RAID5
It’s ineluctable that one day metacheck script, I strongly encourage you to use it if you don’t, will report a metadevice problem. In nine cases out of ten the root cause will be a failed disk. # metastat d90 d90: RAID State: Needs Maintenance Invoke: metareplace d90 c0t13d0s2 Interlace: 512 blocks Size: 335421567 blocks (159 […]
Studying HDS 9990 and 9985 (THI1570)
Tomorrow I’m leaving to Saint-Pitersburg for 5-days training titled “Installing, Configuring and Maintaining Hitachi Universal Storage Platform™ V and Universal Storage Platform ™ VM”. Once I’m done with it, my CTS profile will be 100% completed. Not bad at all ;-)
Back to childhood
Having just returned from a child theater (sorry only in Russian) I can’t wait to express the inner fillings that brimmed me. A play, called “A hedgehog in the fog”, was awesome and brilliantly performed. And to tell the truth, sitting there in a dark with my kid on the laps I felt like I […]
Veritas romp
Just came across a really funny piece of code in OpenSolaris. /* * XXX – Don’t port this to new architectures * A 3rd party volume manager driver (vxdm) depends on the symbol romp. * ‘romp’ has no use with a prom with an IEEE 1275 client interface. * The driver doesn’t use the value, […]