2,296 reputation
11125
bio website linkedin.com/in/krbyrd
location United States
age 41
visits member for 5 years, 4 months
seen Sep 25 at 21:25

All around technology geek.


Nov
23
comment How to reconnect to a disconnected ssh session
@javano: I have never heard of it. Add that as an answer!
Aug
29
comment SSH tunnel created successfully, but telnet test still fails
Voted this up because I've seen a lot of people make this mistake.
Jun
13
comment Cisco ASA: Why do I sometimes need a username/password when entering enable mode
@Gnouc: That's not my experience testing against an ASA this morning, that's why I asked the question. Enable after initial login asks for Password. doing disable (from enable mode) then enable again asks for Username and Password.
Jun
13
comment Cisco ASA: Why do I sometimes need a username/password when entering enable mode
Sort of, not really. I know I can write code to handle "Username" then "Password" instead of just "Password", but I would like to avoid yet another special case. What I'm asking is: "is there any way to avoid this code path?"
Jun
13
comment What is a BEV device?
I updated my answer with some advice (not great, I'm afraid) about troubleshooting the USB issue)
Jun
13
comment What is a BEV device?
Yes, that's your network card telling you it could boot from a PXE server (assuming you has one).
Jun
13
comment What is a BEV device?
I answered your post before you added the part about the flash drive. "What is BEV" and "Why is my flash drive not listed" are WAY different questions. The flash drive question will require a lot more details about your setup.
Oct
20
comment How to get started troubleshooting Linux mdadm raid10 write performance?
Thanks this is a good start. I'd still like to know how to interpret things like iowait times and queue sizes, but this will get me started. After a few days of sar recording and a quick look, I suspect I have a couple of drives in the array writing much slower than the others.
Oct
18
comment How to get started troubleshooting Linux mdadm raid10 write performance?
What doe the various stats mean? What do they tell me about what is going wrong?
Nov
15
comment SATA Raid 10 vs SAS Raid 1
Would I used Linux md RAID in a production environment? I'll point out that your could also do RAID10,f2 with the 4 SATA drives. That might do well. You really should buy both sets and test them, the return (if you can) the drives you don't end up using. Also, remember my warning about small random writes. the 'f2' part of the setup means your disks are seeking a bunch more for each write.
Nov
15
comment SATA Raid 10 vs SAS Raid 1
@Mascarpone: I said "with the SAS drives", I've edited it to say "with the 2 SAS drives"
Nov
15
comment Intermittent connection to ESX using VIX
Are there error messages either on the console of the vmrun machine or in the log file of the ESX machine?
Nov
12
comment SSD redundancy via HDD
drdb is often used to get RAID1-like mirroring behavior, I would put it closer in the block-level mirroring camp than replication.
Nov
10
comment How to determine the interface name for 2 Ethernet adapters with 8 ports?
No, ifconfig will not set a particular physical network card to be eth0. In order to use ifconfig, the device names are already set.
Nov
10
comment How to determine the interface name for 2 Ethernet adapters with 8 ports?
I don't know how CentOS 5.6 handles this, I know with version >=6, udev does this just like I mentioned in my answer.
Nov
1
comment Is Hyper-V a real hypervisor
-1. According to Wikipedia, that's not true. Even though Hyper-V looks like the hypervisor is running on a 2008 OS. It's actually a virtualized 2008 instance.
May
23
comment Is there a way to clone an existing VM on an ESXi server without having to re-import it?
Rather than using cp, use vmkfstools.
Dec
29
comment Detach X11 app and reattach on another?
+1! I just set this up (well WinSwitch) on an Ubuntu server with an OS X client. It does exactly what I want!
Dec
16
comment Repair OS From Within VMWare
I don't know what you mean "or the image on the ESX installation?" Assuming a fairly default VM, when you boot your VM with a live CD your disk should be at /dev/sda from inside the VM. With sysrescuecd, it doesn't automount anything. So you would have to cd to someplace like /mnt, make a directory (do NOT mount something directly on /mnt!!!) under there, then mount the correct partition (like /dev/sda1). Finding the right partition could be tough, but if you know roughly how big it was, you could do 'fdisk -l /dev/sda' and look at the various partition sizes.
Dec
6
comment How can I create and mount a shadow copy from a batch file on Windows 7?
@Andrew: You caught me. It's for a single desktop, but I figured the ServerFauly folks would be more likely to have an answer than the SuperUser folks because mucking with VSS isn't something I'd expect a user to do. IIRC, Win2008 has a binary that'll do this from the cmdline, so that's why I specified Win7.