Every now and again I like to present a grab bag of links
that I find to be interesting, even if they don't warrant their own post.
For instance, some weeks back I wrote that more people are talking about AIX on
Power and its industry-best downtime numbers.
Here's more on that topic.
"Among the customers surveyed by
I also liked these recent articles:
* From ComputerWorld:
"The National Oceanic and Atmospheric Administration (NOAA) system, which
went online in August, is compromised of 'Stratus' and its backup, 'Cirrus,'
two separate supercomputers with about 5,000
*
* Here, the reuse of SAN disks is examined:
"The support of these scenarios in which remapping, copying, and reuse of
SAN disks is allowed and supported has never been officially documented. There
have been some documents and IBM Redbooks that have claimed support for
specific scenarios, but they do not list the specific steps or restrictions.
The scenarios detailed here guide systems administrators through the steps
taken to achieve the specific environment desired. They also attempt to explain
why the setup must be followed to achieve the desired results. If the steps are
not followed, in some cases the system may not boot."
* Here's an IBM Systems Magazine Web Exclusive on using the mkramdsk command:
"One of the most common concerns for system administrators is maximizing
disk performance. The AIX command mkramdisk is ideal for producing very high
speed I/O by letting the memory do all the work. Database administrators are
well aware of the benefits of keeping frequently accessed data in memory in
order to reduce the need to retrieve that data from disk. The AIX mkramdisk
command allows system administrators to create memory-resident file systems.
The performance benefits of using RAM disk can be astonishing. The unload of a
large TSM database was reduced from 40 hours on SAN disks down to 10 minutes
using RAM disk."
* Finally, here's something to look forward to with the POWER7 processors:
"IBM's Hot Chips presentation on its forthcoming 45nm POWER7 server
processor had a wealth of information on the chip… POWER7 will come in 4-, 6-,
and 8-core varieties, with the default presumably being the 8-core and the
lower-core variants being offered to improve yields."
If you've found interesting articles online, please share your links in Comments.




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