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bio website 500px.com/ewwhite
location Chicago, IL
age 34
visits member for 5 years, 5 months
seen 2 hours 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


16h
comment VMware, LVM & Linux: Expanding a volume… temporarily, and without downtime
Can you give more details? The OS involved, the filesystems involved, the amount of data in use, how much things need to be expanded by, the performance requirements, etc.
1d
comment ESXi host halts, console seems responsive but
@JeremyHolovacs You have ESXi installed on a single disk without RAID? Is it attached directly to the motherboard SATA port?
1d
comment Find (un)used packages on CentOS/Fedora?
What resources usage would you be reducing? Security doesn't hinge on what's installed, but more likely what's running (services, open ports, etc.) - Do you have a resource or security problem?
1d
comment Find (un)used packages on CentOS/Fedora?
What problem would you solve by doing this?
2d
comment Solaris: Encrypting a zpool NOT a dataset within a pool?
Sigh... If only we had this for non-Solaris ZFS implementations...
2d
comment Solaris: Encrypting a zpool NOT a dataset within a pool?
How do you know the zpools are encrypted?
Dec
25
comment ESXi host halts, console seems responsive but
More detail, please?
Dec
25
comment How to change the terminal to SCO compliant in Ubuntu
But no followup ;)
Dec
25
comment Interpreting uptime and top average load numbers
@MatthewIfe Like someone went crazy with taskset/numactl?
Dec
24
comment Numbering scheme for CPU affinity
0-11 are CPU socket #1, 12-23 are CPU socket #2. You can be picky and excluded Hyperthreaded cores. But that's the numbering.
Dec
24
comment Numbering scheme for CPU affinity
I'm not suggesting you do this. Seriously.
Dec
24
comment Numbering scheme for CPU affinity
I just pulled the CPU topology map from one of my Westmere-based servers.
Dec
24
comment Numbering scheme for CPU affinity
No, I said single socket, not single core...
Dec
24
comment Numbering scheme for CPU affinity
Assign the VM one CPU socket. That's probably the right way to handle this. What software requires the licensing?
Dec
24
comment Numbering scheme for CPU affinity
Why do you want to do this? For licensing?
Dec
24
comment Switches without SFP and with SFP
Please provide the device models.
Dec
23
comment A tool to get disk activity statistics from strace?
Probably some combination of blktrace and other tools.
Dec
22
comment Bypass primary DNS for one domain
Can you use a hosts file entry?
Dec
21
comment How to estimate potential power savings
The ILO keeps a bit of history. This is easy to test. Run a server in both modes for a day and compare the graphs. I would have posted examples had the OP provided server model and generation information... pulling teeth
Dec
21
comment How to estimate potential power savings
Can you also explain how you're being billed for power? Is it per-server, per-circuit, are there thresholds you need to match, is this a co-location facility/data center, or are you trying to meter your utility power utilization??