May 31, 2009 7:26 PM
Posted by: Raj Perumal
Upgrade ESXi 3.5 to ESXi4.0,
upgrade ESXi to vSphere 4,
Upgrade to vSphere 4.0,
vCenter,
vSphere client,
vSphere host update utility,
without vCenterSo ESXi 4.0 is now available and you want to get cracking learning everything you can about it. You go to upgrade it in your home environment or your test lab and you realize you can't do anything because you don't have vCenter. What do you do?
Never fear! You can upgrade it anyway! What's the...
May 31, 2009 7:17 PM
Posted by: Raj Perumal
1 Gbps,
10 GbE,
10/100 Mbps,
upgrade your networkSo in this day and age 10 GbE switches are starting to become more popular. Recently many 10 GbE offerings have been announced from various vendors. This has got me thinking. Taking a quick survey of networks I have come across, there is still a huge proliferation of 10/100 and people are still...
May 31, 2009 7:10 PM
Posted by: Raj Perumal
Cisco Wireless,
Cisco Wireless Location Appliance,
lightweight APs,
lwapp,
RFID,
RFID tagging,
wireless controllersHi folks, so if there is one thing that is annoying it's misplacing things. Whether it's some sort of important customer inventory, or whether it's a piece of hardware you own and you need to know it's whereabouts. What do people do in large organizations where you need to keep track of...
May 26, 2009 4:18 PM
Posted by: Raj Perumal
power outage,
shutdown servers gracefully,
UPS managed shutdown,
UPS monitoring,
UPS software agentOne thing I'd like to add to my previous post regarding UPS'. The other thing that is consistently seen out there in the IT world is not only administrators forgetting to change out expired batteries, but also administrators not configuring UPS' to shutdown their servers properly.
Most UPS' come...
May 26, 2009 4:13 PM
Posted by: Raj Perumal
battery age,
replace UPS batteries,
UPS,
UPS battery expiration,
UPS maintenanceSo when asking clients about the most important things in their server room you will consistently hear answers about the speed and power of their network, or the latest loaded server they have. Perhaps they will even talk about the great things they've done with virtualization.
However, the one...
May 25, 2009 12:43 AM
Posted by: Raj Perumal
CCNA Wireless,
certifications,
Cisco,
CUWNE,
CWTS,
vendor neutral,
Wireless #So I've often been asked where to go for good wireless info when you're starting to learn the wireless trade as it relates to IT. This isn't one of those things every tech out there knows how to do aside from the home based wireless routers available in your local electronics retailers.
There...
May 25, 2009 12:37 AM
Posted by: Raj Perumal
C3000,
C7000,
interconnects,
mezzanine mapping,
racking a HP BladeSystemOne of the things I've seen a lot of is improper racking of HP BladeSystems. Sometimes people don't take the time to RTFM and end up putting the whole thing together wrong in the rack. You'd think this wouldn't be possible but it's not that hard to do.
Two major things stand out wrong when...
May 25, 2009 12:27 AM
Posted by: Raj Perumal
backup,
data centers,
Deduplication,
replication,
robotic libraries,
tape libraries,
terabytes,
VTLHi folks, I wanted to talk backup for a second. Now in large data center environments backup strategies aren't always cut and dry. You are usually dealing with large amounts of data and very small backup windows.
We're talking about servers that need to be up 24/7 and 365 days a year and lots of...
May 23, 2009 3:05 AM
Posted by: Raj Perumal
AP's,
Cisco Wireless,
containing rogue access points,
rogue access points,
wireless securitySo one of the more common technologies I see being implemented in my day to day work is wireless. Wireless is one of those mixed bags. It's a great technology that offers a lot of convenience to your users but at the same time it can be a huge security risk and a pain to maintain.
One of the...
