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  • 31 votes cast
Apr
24
comment Windows Server 2008 Low Throughput on Internet Latency Connections
We tried both of these options and it had no effect. We also turned flow control on, again no effect. We tried all the permutations thereof, no effect.
Apr
24
comment Windows Server 2008 Low Throughput on Internet Latency Connections
I think out case is worse then yours though -- we are talking about 400kbs between two datacenters in the same city with ping times between them of 20ms... The difference between that and linux/freebsd is 10 - 40x
Apr
14
comment Forcing rsync to convert file names to lower case
Couple of issues: (1) there can't possibly be any conflicts, because the source of the data is a case insensitive file system (2) the script would impose a huge performance penalty -- their are millions of files being copied. How long does it take to rename ~12 million files -- also, while the rename script is running the service being migrated is down. The hope was that there was an inline way to do this...
Mar
4
comment Choosing a SAN technology for 100s of VM Web Servers
This answer is perfect. On many occasions I have set out to tackle a problem like this one and I had some preconceived notion of what the problem was. Nine times out of ten it ends in tears when I learn that I simply did not know enough about the problem. Carefully profile, determine what the bottleneck is and then proceed. You can ask the "hive mind" for help, or you can turn to a SAN vendor to assistance. Also, if you are having trouble profiling, NetApp and/or EMC will be glad to help you figure your stats out and then size a solution for you. Both have good software for doing this.
Jun
25
comment How do I set permissions on network shares to allow SYSTEM account access in server cluster?
Remember -- Changes made to various settings that affect SYSTEM accounts and MACHINE accounts do not take effect until and unless the machine in question is rebooted. For example, change and ENVIRONMENT variable for SYSTEM, no change until reboot. Likewise, add a machine account to a group, no change until the machine is rebooted. Forgetting this can result in a massive dose of frustration...
Mar
3
comment ZFS Like Alternatives on Windows
Is Symantec still actively developing/supporting the Veritas (now Storage Foundation) stuff? Trying to get pricing/basic questions answered about it is like pulling teeth. Looks like a great propduct on paper though...
Mar
3
comment Where to Buy Symantec Storage Foundation for Windows (Nee Veritas)
I know what you mean! Officially, they sell it through resellers (VARs). Its just that they don't have a list of VARS who know anything about it. They all can see this huge price sheet of SKU's but they don't know which is which etc.
Aug
10
comment Windows Server 2008 R2 User to Run Scheduled Tasks Under
I think of it as a hack because, it seems to me anyway, the #1 use of a scheduled task to perform the same actions, over and over again, no matter what indefinitely. I looked into it further and it turned out the SYSTEM account is the way to go. I just had to tweak SYSTEM permissions to enable the tasks to run et vollia -- success.
Jul
11
comment Anyone have any experiences with SuperMicro Layer 3 Switches (SSE-G48-TG4 in particular)
We purchased the switch -- it works, but because of the software/config differences from the hp/cisco gear we are used to, we paid a major penalty. Basically, we got it working in the end but it was like performing brain surgery on oneself.
Mar
19
comment HP ProCurve Port Mode Configuration Question Mark 2
That is what I though, actually. I managed, however, to convince myself that I was imagining things though: A CCIE in a data center where we are doing an installation asked us to lock the port to 1000/full duplex and disable auto negotiation and there was that 1000-full option in the documentation. HP support got back to me and confirmed its AUTO ONLY for gige Perhaps cisco gear has some proprietary mode that does not auto-neg anything?
Mar
18
comment HP ProCurve Port Mode Configuration Question
The trouble is, when I try to set 1000-full from the CLI (as described) I get the following error: Value 1000-full is not applicable to port 39 The exact commands I have entered are: config interface 39 speed-duplex 1000-full BTW: speed-duplex auto-1000 works.
Feb
28
comment Simplicity vs Redundancy
There is an answer. If you, say, racked up 100 test racks and ran them for 3 years 50 with single point of failure top of rack hardware, 50 without, one would, at the end, be able to say which proved more reliable.
Feb
17
comment PFSense issue with Intel 82576 dual link network cards
The version we are using is 1.2.3
Jan
22
comment VM Ware Pricing Confusion
Can you recommend someone I can contact to get my questions answered?
Dec
29
comment Rackmount Server Reliability by Brand Name and Form Factor
Regarding the XP Pro 64: We only needed an OS that could run a JVM, end of story. XP Pro is an OS our developers are all familiar with and its cheap. We don't need any services typically associated with a server OS. I have never heard a real, concrete reason to switch to another server os. Lots of "FreeBSD is rock solid" etc. but no one has ever followed that up with a solid because XYZ or provided real failure data etc. We did performance test comparing Linux/FreeBSD and Windows XP Pro and XP PRO actually came out on top for our workload on identical hardware.
Dec
29
comment Rackmount Server Reliability by Brand Name and Form Factor
Regarding the XP Pro: We only needed an OS that could run a JVM, end of story. XP Pro is an OS our developers are all familiar with, its cheap (we pay about $99/node). We don't need any services typically associated with a server OS. Basically, all we needed was a OS that runs a good JVM, has a TCP/IP stack and boots. We considered running FreeBSD as our node OS but rejected it simply because our personnel are more used to windows.