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Sep
27
comment How to achieve multiple NFS/TCP connections to the same server?
What distro are you using on the server? How much RAM? number of cores? How many disks? type of disks? average iops per disk that you are seeing? operations in queue on the disks? time in queue per op on the disk? version of nfs? number of clients connecting to the server? There is a lot that goes into perf tuning and it is important to step back and look at the big picture first, and then narrow down. If you have done this, it helps to post numbers and stats you have already gathered. Even the clients may have something to do with it (eg, buffer size, mount options, dirty pages, etc).
Sep
27
comment Network Patch Panel Connections
I have to agree with Grant. I used to cable up sites frequently and most tend to like to do it all at once for several reasons. It is cheaper if you are contracting to have it all done on the same trip. It is much easier to route cables without creating tangles and ugliness if switch groups are all routed at the same time. As far as reasons to do it the other way, if you label everything, it is easier to label end to end as you're putting them in, and if you don't know end to end when you install, it can be a pain to put ptags or ptouch flags on cable ends in a tied bundle later on.
May
14
awarded  Caucus
Jan
29
comment Intermittent NFS lockups on Isilon cluster
maybe modify the min/max rpc threads?
Jan
29
comment Fastest way to delete millions of files on an Isilon IQ 72NL SAN?
disabling the journal on an Isilon is a very, very, very bad idea and will likely cause data loss across the cluster. Please do not ever attempt this.
Oct
12
comment Fastest way to delete millions of files on an Isilon IQ 72NL SAN?
A locally run rm is a bad idea on an isilon cluster. It is single threaded and will make use of only one node's power. If you want a faster method, you'd be better off with the TreeDelete job as it is multi-threaded and will use the entire cluster's compute strength to complete.
Aug
16
awarded  Yearling
Oct
19
comment Will a router allow network traffic from a static IP?
Are we talking public or private IPs here? Can you take control of the statics in your router and just route the combined traffic to the data center gateway or do you need to just add DHCP functionality aside from what is statically assigned from the data center?
Sep
30
comment solution to store 10TB /Month
I want to expand on this. Not only can you lose a node or disk (depending on setup, even multiple nodes), the cluster rebuilds the data on its own so that you don't need to rush a new node or disk in, unlike traditional raid storage, where you require the replacement to rebuild.
Sep
5
comment Trying to connect to Isilon Server
Without access to the system can you even be sure that there is nothing wrong with permissions or samba (ie if other users are not using windows).
Aug
29
comment 50 workstations, 1 .bat file on a network server, will it work?
There shouldn't be any issues with doing this as it is a fairly common practice in windows environments. The only possible issue you might face with 50 workstations running the file at once is bandwidth on the network, though this depends solely on what exactly the batch file does - most likely it will not be a problem.
Aug
24
comment Why can't I access my site with a WWW. prefix?
If your A record does not work and your server does indeed allow for the www. prefix, you can then try a CNAME, though only do so at last resort: example.com A 99.99.99.99; www.example.com CNAME example.com. Depending on your DNS implementation, this may not work and it is not the best practice if it does. I highly recommend following Colin's advice first.
Aug
24
comment 19" Rackmountable fast storage arrays
Definitely fast, also very configurable, secure and robust, but not necessarily cheap.
Aug
18
comment Creating an IT department?
The first step should be documenting existing equipment and licenses. You absolutely need a list of every piece of equipment and software license and who is using it and on what machines. I wouldn't move any further until you do this. Once you have this, then work toward a list of what you need and what equipment/software you need in addition to what you have already to make this work. Obviously, open source is your friend in a limited budget environment, but be prepared to spend a lot of time setting it all up.
Aug
17
awarded  Yearling
Aug
16
awarded  Electorate
Aug
12
answered Free and easy software to Monitor Cisco Router (T1)?
Aug
5
comment Vi how to search for numbers
have you tried vimgrep?
Jul
3
comment How brittle are fiber cables?
This wholly depends on the type of fiber being used. Corning, amongst other vendors, have released some bend resistant fibers that are very difficult to damage. AT&T and Verizon both use this now as their standard cabling within their central offices. The TP76300 Section J-10 provides AT&T's quality requirements for fiber bending radius as 1.5 inches. Verizon's quality document IP72202 defines the bending radius for fiber as the manufacturer standards. Corning states that 25mm or more (1+ inches) provides insignificant attenuation on most fibers.
Jun
5
comment Does the router have to always take the first valid host addresses in a subnet?
Moving away from this convention is considered unorthodox and can lead to confusion in the future. One example on a wider scale of things is the situation I'm in at the company I work at, where three ISPs merged, two of which use x.x.x.1 as the gateway and the third uses x.x.x.254 as the gateway. This has a caused a great number of sync-no-surf issues where both installation and support reps from either company get confused and use the wrong gateway while working on a router config.