Difference Between 120V & 208V?
Aug 31, 2009As stated on the title. I'm confused about power..
View 12 RepliesAs stated on the title. I'm confused about power..
View 12 Replies[url]
APC don't seem to make a 30A version of the above @ 120V. Any alternative suggestions? Baytech's website is next to useless.
Currently we are running some equipment on a 208v 30amp circuit and using APC step down transformers to take it to 110v.
All the servers running on that circuit are Dell PE1950's so they are pretty new. There is also a newer dell switch and a Cisco Pix 515E on there.
I am getting rid of the step down transformers and everything that I have read says that all the PSU's are auto switching and there will be no problem with them running off of straight 208v power without any step down taking place.
I looked all over the web.....well google like 5-6 pages and found the answer but I am not sure I understand.
What is the difference from having [url]and [url]?
does it make a difference to the web user, is it a server thing.
I'm curious. I have read some stuff recently about Amazon, Mosso and other clouds. I know Mosso has switched over to a request based pricing model and I realized that I am not sure exactly what a 'request' is.
I think that a hit, as tallied by AWStats, Webalizer, etc. would be the same thing as a request, but I wasn't 100% sure if that was the case with Mosso. I actually contacted Mosso support (someone I know is considering using them) to ask them for clarification on a request. They stated that a page with two images would be three requests, one for each image and one for the page itself. I asked if it was the same as 'hits' and they said no, it isn't. This didn't sound right to me, because my understanding of 'hits' is the same as how he described 'requests'.
So, I figured I would just ask the experts on WHT.
I am looking to purchase either a VPS1024 or Hybrid1 server from WiredTree this Friday.
The purpose of the server is to house a fairly active phpBB3 forum (10,000 registered members with around 100 members online at any one time). Now what is the benefit of going for the more expensive Hybrid1 ($99 with coupon) compared to the VPS1024 ($71.20 with coupon) - thats almost a $30 difference in price?
In layman terms - am I going to get a greater benefit with the Hybrid1 over the VPS1024?
[url]
what is the difference between www and public_html? I have hosed my domain in a small hosting company and when i was going through all its folders i found both the folder www and public_html has the same content. but by hosting company asks me to upload all my files into public_html. Iam curious to know the difference between these two folders.
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What even is RAM!
I ask because I upgraded my server (again) today. I went from 256 RAM, to 512, now to 1024 of RAM. Is 1 gig of RAM good?
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Dedicated RAM: 1024 MB
Burstable RAM: 4096 MB
RAID 10 Disk Space: 100 GB
FREE Backup Space: 100 GB
Premium Bandwidth: 4000 GB
Dedicated IP Address: 2
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Should a site on this server run fast, if it is a high traffic "tube" site?
I have a partition /dev/sda2 which is mounted to /webroot.
Today, I find that I can't upload any files via IPB (running on lighttpd)
So, as usual, I went on SSH and tried df in order to see how much space is left on the server:
Filesystem 1K-blocks Used Available Use% Mounted on
<deleted>
/dev/sda2 20641788 19483292 109856 100% /webroot
Since lighttpd is running inside chroot, I thought it was the log files but even after I deleted them, it is still at 100% usage.
After spending some time, I couldn't find any large files so I did du -hs to see which folder is using large amount of space.
web1:/webroot# du -hs /webroot
2.2G /webroot
I'm without a clue on this as what du -hs is telling me and df is different but it seems like the partition is really full.
Any ideas?
Here is the output of tune2fs for reference:
web1:/webroot/var/run/lighttpd# tune2fs -l /dev/sda2
tune2fs 1.40-WIP (14-Nov-2006)
Filesystem volume name: /webroot
Last mounted on: <not available>
Filesystem UUID: 62625b28-9ad6-4258-8acc-0bfa0e7b5f48
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal filetype needs_recovery sparse_super large _file
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 2626560
Block count: 5242880
Reserved block count: 262160
Free blocks: 5123494
Free inodes: 2626465
First block: 0
Block size: 4096
Fragment size: 4096
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 16416
Inode blocks per group: 513
Filesystem created: Fri Jun 27 13:34:27 2008
Last mount time: Sun Jun 29 01:11:27 2008
Last write time: Sun Jun 29 01:11:27 2008
Mount count: 7
Maximum mount count: 36
Last checked: Fri Jun 27 13:34:27 2008
Check interval: 15552000 (6 months)
Next check after: Wed Dec 24 12:34:27 2008
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
First orphan inode: 820811
Default directory hash: tea
Directory Hash Seed: de38e2ce-4ee2-4ecd-a562-16ecb5982500
Journal backup: inode blocks
Also /etc/fstab entry for /dev/sda2:
web1:/webroot# cat /etc/fstab|grep sda2
/dev/sda2 /webroot ext3 defaults 1 2
you can get really cheap ones, like $20/year, but you can also get really expensive ones, I've seen over 1k per year.
What is the difference between these? Right now I just use self signed but eventually I'll probably want to get a "real" one to suppress all the warnings. (newer browsers are bad for that, they make it look like the site is down, to a typical user).
SoftLayer recently added TW Cable to their BGP mix. However, it is Time Warner Cable, while the ones I usually see is TW Telecom.
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[url]
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