108,130 reputation
15171381
bio website 500px.com/ewwhite
location Chicago, IL
age 34
visits member for 5 years, 3 months
seen 18 mins ago

Senior Systems Engineer with a Linux, virtualization and performance-tuning focus.

Careers.SE: http://careers.stackoverflow.com/edmundwhite

LinkedIn: http://www.linkedin.com/pub/edmund-white/7/588/147

ewwhite AT mac.com


Dec
11
revised What is the name of this screw? (from HP ProLiant quick-deploy rail kits)
edited title
Dec
11
comment What is the name of this screw? (from HP ProLiant quick-deploy rail kits)
Okay. You need a bulk package of guide pins. How many?
Dec
11
revised What is the name of this screw? (from HP ProLiant quick-deploy rail kits)
deleted 34 characters in body
Dec
11
comment What is the name of this screw? (from HP ProLiant quick-deploy rail kits)
You're not. But where did the screws go?
Dec
11
comment What is the name of this screw? (from HP ProLiant quick-deploy rail kits)
Which server models do you need this for?
Dec
11
revised What is the name of this screw? (from HP ProLiant quick-deploy rail kits)
deleted 34 characters in body
Dec
11
revised What is the name of this screw? (from HP ProLiant quick-deploy rail kits)
added 76 characters in body
Dec
11
answered What is the name of this screw? (from HP ProLiant quick-deploy rail kits)
Dec
11
comment What is the name of this screw? (from HP ProLiant quick-deploy rail kits)
What are you trying to do? Really. Please give us some context.
Dec
11
revised Determining cause of high NFS/IO utilization without iotop
added 24 characters in body
Dec
11
answered Determining cause of high NFS/IO utilization without iotop
Dec
11
revised Troubleshooting poor disk IO performance
edited body
Dec
11
comment Quantifying the effects of partition mis-alignment
See: serverfault.com/questions/373563/…
Dec
11
comment Quantifying the effects of partition mis-alignment
@matt As for the performance issues, alignment isn't at the core of it. You're abstracted through the RAID controller; writes should be cached via the battery-backed cache unit, reads are going to be what they are.
Dec
11
comment Quantifying the effects of partition mis-alignment
Consider using the deadline I/O scheduler. CFQ is the pits in EL5.
Dec
11
comment SNMP - Value of CPU processor load not reflecting reality
That's the server's aggregate CPU utilization.
Dec
11
comment Quantifying the effects of partition mis-alignment
First, run cat /sys/block/sdb/queue/scheduler and report the result. Second, please describe "performance issues".
Dec
10
comment allowing 2 VM's to communicate RED HAT 64 bit
In small cluster settings or local storage networking, we still manage the /etc/hosts file.
Dec
10
answered allowing 2 VM's to communicate RED HAT 64 bit
Dec
10
comment SNMP - Value of CPU processor load not reflecting reality
@Ovesh That does not make sense. You should be querying your guest OS's SNMP stack.