Omega Owners Forum
Chat Area => General Discussion Area => Topic started by: TheBoy on 09 November 2007, 18:42:36
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Well, 2 actually, as 2nd question will be posted a bit later....
What looks immediately obviously wrong with the OOF server? (and no, PaulM, its not that the host runs Windoze)
(http://images.omegaowners.com/images/theboy/odds/oofserver.JPG)
Guess what I'm going to be splashing out on when I get out of the bath!
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Well I would put money on some more memory given the page file useage.....
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I had the answer a minute ago but my memory must be failing me.
It's no good, this virtual stuff.
Kevin
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Thats one hell of a swap file!
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to be honest, normally feels fine to use from here, occasional sluggishness, but nothing like we used to have :y
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It will certainly be nailing the disk and access times on hard disks arnt the best.....
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A replacement for Sammy in case it doesn't start behaving itself.
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to be honest, normally feels fine to use from here, occasional sluggishness, but nothing like we used to have :y
Yeah, much better since the upgrade :y
The fact that it hasn't come to its' knees makes me think it's not using most of that memory on a very regular basis. Not sprung a leak, has it?
Kevin
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Absolutely. My flexible friend will be chatting to Crucial in a while...
So my next Q to you techies, can you guess why it is running fine ;)
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Hmm.... I couldn't tell you.. I know nothing about IT, your honor ;D
But the swap file is rather large ::)
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I'd put more RAM in - swapping to flash memory?
Also would a reboot help - seeing it is on Windows
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I'd put more RAM in - swapping to flash memory?
Also would a reboot help - seeing it is on Windows
Flash is a very poor disk due to poor data rentention/integrity if constantly written. No, it pages to disks.
Its a Windows server, only reboots it needs is for patching ;)
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Is that a virtual machine or the real one?
Kevin
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Is that a virtual machine or the real one?
Kevin
Thats the real Host, OOF runs on a shit Linux VM under it...
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I'd put more RAM in - swapping to flash memory?
Also would a reboot help - seeing it is on Windows
Flash is a very poor disk due to poor data rentention/integrity if constantly written. No, it pages to disks.
Its a Windows server, only reboots it needs is for patching ;)
Oh regularly then ;D
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I'd put more RAM in - swapping to flash memory?
Also would a reboot help - seeing it is on Windows
Flash is a very poor disk due to poor data rentention/integrity if constantly written. No, it pages to disks.
Its a Windows server, only reboots it needs is for patching ;)
Oh regularly then ;D
Patched the day after 'patch Tuesday' monthly. Normally, there's a 1 in 3 chance of reboot required, average automatic reboot is every 3 months.
It may need an outage over weekend, depending on whether vga card has failed, or the monitor...
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So my next Q to you techies, can you guess why it is running fine ;)
Coz I suspect that most of whats in the page file is not being accessed......is it the whole forum from day 1 ?.
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So my next Q to you techies, can you guess why it is running fine ;)
Coz I suspect that most of whats in the page file is not being accessed......is it the whole forum from day 1 ?.
correct, and correct.
Page Faults/sec are fairly low, despite the amount of committed v physical RAM. Plus 64bit Windows handles it better than 32bit Windows.
Nice easy one...
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Yep, whatever is there isn't needed often - if at all.
Time to name and shame a few processes?
Kevin
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Yep, whatever is there isn't needed often - if at all.
Time to name and shame a few processes?
Kevin
VMWare is obviously biggest culprit - all of OOF's servers' RAM is set not to page, along with other VMs that are running (currently, when screenshot taken, 2 Linux, one Windows).
Some pretty big databases live on there (fallback for my brother's shops), and RDBMS do like to hog memory, plus quite a few IIS asp and aspx sites. Some of the apps grab memory for performance reasons.
Most importantly, a fast disk subsystem to page quickly when required.
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Ahh, yes. Processes not that interesting when the meat is all done in VMs. ::)
Right, shall I do a search now and see if I can make it grunt a bit ? ;D
Kevin
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Ahh, yes. Processes not that interesting when the meat is all done in VMs. ::)
Right, shall I do a search now and see if I can make it grunt a bit ? ;D
Kevin
the search is cpu intensive. the cpus can cope easily ;)
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Ahh, yes. Processes not that interesting when the meat is all done in VMs. ::)
Right, shall I do a search now and see if I can make it grunt a bit ? ;D
Kevin
the search is cpu intensive. the cpus can cope easily ;)
Its the google submission script that does make the processors cry ::)
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Ahh, yes. Processes not that interesting when the meat is all done in VMs. ::)
Right, shall I do a search now and see if I can make it grunt a bit ? ;D
Kevin
the search is cpu intensive. the cpus can cope easily ;)
They're looking a bit bored, to be honest.
Kevin
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again late answer..Dentist adventure..
obviously system needs more memory..But it doesnt guarantee much faster op.May be VM and linux needs a bit playing on parameters if possible..
paging files can be adressed to raid arrays alternatively..
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again late answer..Dentist adventure..
obviously system needs more memory..But it doesnt guarantee much faster op.May be VM and linux needs a bit playing on parameters if possible..
paging files can be adressed to raid arrays alternatively..
One of the problems with a full hypervisor type system like vmware is its lack of flexibility with hardware resources. So I may, at any point in time, have some VMs using little memory, but still being allocated lots (VMWare does cope with this to an extent, but far from perfect)
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Another 2G ordered, should be here next week...
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As I'm a programmer one operating system inside another is enough complicated for me.
Dont know how they handle 2 kernels one inside another. :o
Of course this makes the administration and tuning tasks really complicated..
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I remember end of 1980 ties we were trying to learn 8086 assembly codes..
When 32 bit 386 was demonstrated assembly modes were same as twilight zone..After I give up..
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When 32 bit 386 was demonstrated assembly modes were same as twilight zone..After I give up..
Ahh, that's just when the "kernel within a kernel" stuff got really exciting!
The most fun project I've worked on was developing an embedded system from the RTOS kernel upwards. Made me realise what you can go with a little processing power if things don't get too bloated. Our simulation build running on a top spec PC at the time ran many times slower than on the target system - which was a 16 bit machine running at 20MHz IIRC.
Kevin
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Yep, whatever is there isn't needed often - if at all.
Time to name and shame a few processes?
Kevin
VMWare is obviously biggest culprit - all of OOF's servers' RAM is set not to page, along with other VMs that are running (currently, when screenshot taken, 2 Linux, one Windows).
Some pretty big databases live on there (fallback for my brother's shops), and RDBMS do like to hog memory, plus quite a few IIS asp and aspx sites. Some of the apps grab memory for performance reasons.
Most importantly, a fast disk subsystem to page quickly when required.
Thats funny the server we use doesn't hog memory too much. And its performance is fine, the biggest single site glass processor in the UK uses it!
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Yep, whatever is there isn't needed often - if at all.
Time to name and shame a few processes?
Kevin
VMWare is obviously biggest culprit - all of OOF's servers' RAM is set not to page, along with other VMs that are running (currently, when screenshot taken, 2 Linux, one Windows).
Some pretty big databases live on there (fallback for my brother's shops), and RDBMS do like to hog memory, plus quite a few IIS asp and aspx sites. Some of the apps grab memory for performance reasons.
Most importantly, a fast disk subsystem to page quickly when required.
Thats funny the server we use doesn't hog memory too much. And its performance is fine, the biggest single site glass processor in the UK uses it!
Ah, but you servers most likely are nowhere as busy as this one. Leaving aside the VMs (The OOF VM is fairly busy, the other Linux one is so-so, the Windows VM is incredibly busy), there are a few 'several hundred Mb' databases constantly replicating, and other applications running, including some big asp and .NET apps, many themselves access smaller databases. Then there is the email system, and lets not forget WSUS 3 (itself a server killer). Backup software, as I'm sure you know, can be a resource hog. The offsite FTP backup scripts, and google submission scripts are obviously using server resources. Keeping that lot running smoothly does need a fair amount of resources. Remember, the old server was on its knees, due to being only a 2.6GHz (I think) P4, 2G RAM.
Yes, SQL Server does try to claim all available memory (like all decent RDBMS), whether needed or not, as query memory. Generally part of the reason why SQL and Oracle are generally the quickest on Windows servers. But it is equally willing to give up when not required. Its actually using a measly 35Mb at the moment, as a load of processes kicked off at midnight, and the backups have kicked in as well.
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Backup software - I don't like it to be honest - most are a pain to set up and they are hogs.
But it is needed
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Backup software - I don't like it to be honest - most are a pain to set up and they are hogs.
But it is needed
I like Veritas Backup Exec
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We used to use Snapback - an image backage
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Backup software - I don't like it to be honest - most are a pain to set up and they are hogs.
But it is needed
I like Veritas Backup Exec
Like everything Veritas, they have taken a reasonable product (in its time) and made it cumbersome. Now they are Symantec, it will get even worse.
Hence, I've upgraded my ARCserve again...
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Backup software - I don't like it to be honest - most are a pain to set up and they are hogs.
But it is needed
I like Veritas Backup Exec
Like everything Veritas, they have taken a reasonable product (in its time) and made it cumbersome. Now they are Symantec, it will get even worse.
Hence, I've upgraded my ARCserve again...
Agreed I saw a demo of version 11 recently and it is certainly going that way. Out of interest, how much did you pay for the ram?
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Backup software - I don't like it to be honest - most are a pain to set up and they are hogs.
But it is needed
I like Veritas Backup Exec
Like everything Veritas, they have taken a reasonable product (in its time) and made it cumbersome. Now they are Symantec, it will get even worse.
Hence, I've upgraded my ARCserve again...
Agreed I saw a demo of version 11 recently and it is certainly going that way. Out of interest, how much did you pay for the ram?
£32 for the extra 2G (2 x 1G) memory
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You obviously get a good rate at Crucial then. I buy quite a bit of memory from them and the discounts that I get are sometimes quite amazing!
I guess that, being a server, it is parity checked ram as well.