september
Saturday, October 19 2013
Netgear ReadyNAS 6 Ultra
[16:38:13] matt [wronka.org]/Psi+ Periodically, my MythTV DVR has trouble pushing video to the front-ends. Jumping into the backend, it turns-out that this is because it's only pulling about 1MB/s from the Netgear Ready NAS 6 Ultra. I tried a variety of things, such as defragging the XFS filesystem I'm using on it, to no avail. Having a little more time this morning and nothing important to record, I spent a little more time looking at it, and realized that I was getting between 58ms and ~85ms ping times to the NAS which was directly connected over a 1Gb link (previously there was a combination 1Gb switch and WiFi AP in between I had blamed). 58ms is exceptoinally bad for this connection, and originally I thought I must have entered the address of my receiver connected via a WiFi link, but after tripple checking the receiver was actually < 2ms and the directly connected Ready NAS was magnitudes slower.
Rebooting the NAS immediately brought the latency back down to just over 0.2ms average and disk I/O back up to ~30MB/s, a huge change from before but a very dissapointing result. It looks like I ran into this last in early September from the NAS's log history.
[16:38:13] matt [wronka.org]/Psi+ Periodically, my MythTV DVR has trouble pushing video to the front-ends. Jumping into the backend, it turns-out that this is because it's only pulling about 1MB/s from the Netgear Ready NAS 6 Ultra. I tried a variety of things, such as defragging the XFS filesystem I'm using on it, to no avail. Having a little more time this morning and nothing important to record, I spent a little more time looking at it, and realized that I was getting between 58ms and ~85ms ping times to the NAS which was directly connected over a 1Gb link (previously there was a combination 1Gb switch and WiFi AP in between I had blamed). 58ms is exceptoinally bad for this connection, and originally I thought I must have entered the address of my receiver connected via a WiFi link, but after tripple checking the receiver was actually < 2ms and the directly connected Ready NAS was magnitudes slower.
Rebooting the NAS immediately brought the latency back down to just over 0.2ms average and disk I/O back up to ~30MB/s, a huge change from before but a very dissapointing result. It looks like I ran into this last in early September from the NAS's log history.
Friday, July 1 2011
Forbes on the TSA
[15:21:09] matt [wronka.org]/Psi.dementia “Until 2001, far fewer Americans were killed in any grouping of years by all forms of international terrorism than were killed by lightning, and almost none of those terrorist deaths occurred within the United States itself. Even with the September 11 attacks included in the count, the number of Americans killed by international terrorism since the late 1960s (which is when the State Department began counting) is about the same as the number of Americans killed over the same period by lightning, accident-causing deer, or severe allergic reaction to peanuts.”
http://www.cato.org/pubs/regulation/regv27n3/v27n3-5.pdf (Portable Document Format)
It's nice to see articles from publications that Important People read, even if this one's in the blog section:
http://blogs.forbes.com/artcarden/2011/06/30/time-to-close-the-security-theater/
[15:21:09] matt [wronka.org]/Psi.dementia “Until 2001, far fewer Americans were killed in any grouping of years by all forms of international terrorism than were killed by lightning, and almost none of those terrorist deaths occurred within the United States itself. Even with the September 11 attacks included in the count, the number of Americans killed by international terrorism since the late 1960s (which is when the State Department began counting) is about the same as the number of Americans killed over the same period by lightning, accident-causing deer, or severe allergic reaction to peanuts.”
http://www.cato.org/pubs/regulation/regv27n3/v27n3-5.pdf (Portable Document Format)
It's nice to see articles from publications that Important People read, even if this one's in the blog section:
http://blogs.forbes.com/artcarden/2011/06/30/time-to-close-the-security-theater/