Archive for June, 2009

Things to keep in mind when replacing a PS on SF6800/6900

What could be easier than swapping a power supply?! True, very true but not when you’re dealing with SF6800/6900. The problem rises from the fact that it’s quite tough to insert a PSU into its bay because of a tight fitting. And there is a chance to make a pause during the insertion that could […]

Posted on June 29, 2009 at 11:10 pm by sergeyt · Permalink · Leave a comment
In: Sun

Oracle’s option that neglects DR on SUN

I’m in no way an Oracle expert and my opinion has no influence but still I’d like to point out on a ridiculously stupid behavior caused by a hidden Oracle’s parameter called _enable_NUMA_optimization. As I’ve been told by our DBAs, in Oracle 9 this option was set to FALSE but in Oracle 10.2.0.1 they decided […]

Posted on June 26, 2009 at 11:28 am by sergeyt · Permalink · Leave a comment
In: Solaris

Disable mpxio per vendor basis

If you ever wondered about disabling mpxio not only per port but per vendor basis then you’d be surprised to know how easy it’s really to fulfill. Just edit /kernel/drv/scsi_vhci.conf file appropriately: device-type-scsi-options-list = “VendorID1ProductID1”, “disable-option”, “VendorID2ProductID2”, “disable-option”, … “VendorIDnProductIDn”, “disable-option”; disable-option = 0x7000000; So if you, just like me, want to disable mpxio for […]

Posted on June 25, 2009 at 4:06 pm by sergeyt · Permalink · Leave a comment
In: Solaris

vxdmpadm path activate weirdness

Just stumbled upon a strange behavior of vxdmpadm which requires further investigation. The problem I’ve faced with during an attempt to set certain path “active” to loadbalance the data flow on HDS between its controllers. The built-in help clearly states that: # vxdmpadm setattr help vxdmpadm setattr path pathtype= pathtype can be either: active nomanual […]

Posted on June 25, 2009 at 1:35 pm by sergeyt · Permalink · Leave a comment
In: Veritas · Tagged with: 

Moving to my own domain

Just a quick update on what’s happening here ;-) I’ve finally overcome my laziness and purchased a VPS, this is a subject for another post, quickly configured LAMP environment and installed WordPress so during the next few days or maybe even weeks, because currently I’m short on a free time, this site will be in […]

Posted on June 24, 2009 at 1:35 pm by sergeyt · Permalink · Leave a comment
In: Life

Rock is dead?

I do hope that at least this rumor is a pure speculation even it sounds convincing. Otherwise the future of Sun’s hardware business after the deal with Oracle is over looks increasingly dismal.

Posted on June 19, 2009 at 1:40 pm by sergeyt · Permalink · Leave a comment
In: Sun

Data restoration from tape

Recently I had to restore some data from a tape written by means of Netbackup, so solely for the reference purposes I decided to write this short post. First we need to mount the tape, I did this using robtest utility, and perfrom a robot’s inventory to make Netbackup aware about a new tape. Keep […]

Posted on June 19, 2009 at 12:51 pm by sergeyt · Permalink · Leave a comment
In: Veritas · Tagged with: 

Handful of links

Just came across a very useful blog note full of the essential Solaris papers. Solaris white album: essential papers. Noticed that some of these documents were lately released imprinted verbatim in “Solaris Internals” book.

Posted on June 15, 2009 at 2:48 pm by sergeyt · Permalink · Leave a comment
In: Solaris

Identifying a broken disk in HP DL360

Since I don’t have great level of experience with HP DL series I was puzzled for a bit when I found out that one of the disk was broken. How I did that? Easy, by gazing at the “Faulty Led” that went steadily on. Not bad but I wanted to be able to grab more […]

Posted on June 10, 2009 at 1:06 pm by sergeyt · Permalink · Leave a comment
In: Linux

Missing voolboot file

If executing ” vxdctl enable” you receive the following error: VxVM vxdctl ERROR V-5-1-1589 enable failed: Volboot file not loaded then this sequence could help you to resolve the problem: vxio set 10 vxconfigd -d vxdctl init vxdctl enable Good luck.

Posted on June 8, 2009 at 5:43 pm by sergeyt · Permalink · Leave a comment
In: Veritas · Tagged with: