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[aaronjb]

Whoever invented Virtualisation (well, VMWare, Parallels, etc etc) should be hung, drawn and quartered.

JMHO

[Kevin Wood]

As said, disk throughput is not going up when it happens, its just disk speed seems to drop dramatically (ie, latency goes up, ie, it takes longer to process a disk request).

CPU utilisation shows nothing odd either before or during the glitches, though difficult to tell for sure, as by its nature with "several" VMs, its very spikey. Certainly at no point are any of the Xeon's cores looking stressed.

Sounds to me like the RAID controller's having to stop and scratch its' head every so often. Does it report any stats about what it's doing?

I wonder if it's getting errors on one of the devices and retrying? I had a PERC3 that would stop and think every so often. I had a couple of corrupted files, then eventually found out that every time I MD5'ed a partition on it, I got a different answer yet it reported nothing unusual! That went in the bin with immediate effect.

[05omegav6]

Yeah, that ongoing problem reared its head around 2:30 and 4pm this afternoon, as before, no clues as to why.

I hate spending money on the offchance it will fix it 

You have caught that from your mate tunnie 

Trouble is, its quite large sums (£100s) on an offchance it may resolve it. Or about £1500 that I know will resolve it.

Let's say that there are a hundred regular contributors to the forum, and whether we admit it or not, would all be devastated if it rolled over...
 
I know that it's nearly Christmas, blahblahblah, but would it really kill us to chip in £15 each to get this sorted

[Entwood]

Yeah, that ongoing problem reared its head around 2:30 and 4pm this afternoon, as before, no clues as to why.

I hate spending money on the offchance it will fix it 

You have caught that from your mate tunnie 

Trouble is, its quite large sums (£100s) on an offchance it may resolve it. Or about £1500 that I know will resolve it.

Let's say that there are a hundred regular contributors to the forum, and whether we admit it or not, would all be devastated if it rolled over...
 
I know that it's nearly Christmas, blahblahblah, but would it really kill us to chip in £15 each to get this sorted

Great idea, but it's been put out numerous times before .. but TB is just simply against it and will not change his mind. He has his reasons which we must respect, even though we might disagree with them.

[tunnie]

Yeah, that ongoing problem reared its head around 2:30 and 4pm this afternoon, as before, no clues as to why.

I hate spending money on the offchance it will fix it 

You have caught that from your mate tunnie 

Trouble is, its quite large sums (£100s) on an offchance it may resolve it. Or about £1500 that I know will resolve it.

Let's say that there are a hundred regular contributors to the forum, and whether we admit it or not, would all be devastated if it rolled over...
 
I know that it's nearly Christmas, blahblahblah, but would it really kill us to chip in £15 each to get this sorted

Great idea, but it's been put out numerous times before .. but TB is just simply against it and will not change his mind. He has his reasons which we must respect, even though we might disagree with them.

As I indicated in another thread, only way I could see this work is if no one was given recognition for donations, it has to be totally anonymous. 

[TheBoy]

As said, disk throughput is not going up when it happens, its just disk speed seems to drop dramatically (ie, latency goes up, ie, it takes longer to process a disk request).

CPU utilisation shows nothing odd either before or during the glitches, though difficult to tell for sure, as by its nature with "several" VMs, its very spikey. Certainly at no point are any of the Xeon's cores looking stressed.

Sounds to me like the RAID controller's having to stop and scratch its' head every so often. Does it report any stats about what it's doing?

I wonder if it's getting errors on one of the devices and retrying? I had a PERC3 that would stop and think every so often. I had a couple of corrupted files, then eventually found out that every time I MD5'ed a partition on it, I got a different answer yet it reported nothing unusual! That went in the bin with immediate effect.

I did some offline Array Diagnostics (or whatever wankword HP have come up with now, I think its now branded Smart Storage Administrator, no wonder I had to do a double take to pick the right option), no reported errors on the array card, and array card was reporting the underlying disks as healthy, with all the SMART parameters well within spec.

The HP Smart Array controllers are pretty robust, although I have seen a problem where it refused to rebuild a disk, which happened on the previous Proliant we had, as you may recall. Blowing the array away and rebuilding from scratch was the solution provided by HP, which worked, along with a firmware upgrade to prevent it happening again.

Given the cost, it would be a leap of faith to replace the card based on diags so far.

[TheBoy]

Whoever invented Virtualisation (well, VMWare, Parallels, etc etc) should be hung, drawn and quartered.

JMHO

It has its advantages...   ...if you don't overallocate

[TheBoy]

Yeah, that ongoing problem reared its head around 2:30 and 4pm this afternoon, as before, no clues as to why.

I hate spending money on the offchance it will fix it 

You have caught that from your mate tunnie 

Trouble is, its quite large sums (£100s) on an offchance it may resolve it. Or about £1500 that I know will resolve it.

Let's say that there are a hundred regular contributors to the forum, and whether we admit it or not, would all be devastated if it rolled over...
 
I know that it's nearly Christmas, blahblahblah, but would it really kill us to chip in £15 each to get this sorted

Not viable, not fair, thus not gonna happen. End of.

[05omegav6]

Yeah, that ongoing problem reared its head around 2:30 and 4pm this afternoon, as before, no clues as to why.

I hate spending money on the offchance it will fix it 

You have caught that from your mate tunnie 

Trouble is, its quite large sums (£100s) on an offchance it may resolve it. Or about £1500 that I know will resolve it.

Let's say that there are a hundred regular contributors to the forum, and whether we admit it or not, would all be devastated if it rolled over...
 
I know that it's nearly Christmas, blahblahblah, but would it really kill us to chip in £15 each to get this sorted

Not viable, not fair, thus not gonna happen. End of.

An impression of obligatory contribution (or membership/subscription by any other name) was/is neither my point nor intent

Rather a voluntary and annonymous contribution to sorting any hardware issues that you might be facing I understand your your devotion to the principles behind the Forum, respect those principles and actually agree with them. The poll that I instigated should, hopefully, indicate a willingness to bear some of the burden by the guests that we all ultimately are...

The poll has, touch wood, another 6.5 days to run and should be seen as a sign of encouragement.

[chrisgixer]

42 offers can't be wrong.

But maybe TB feels he may not want to host the site forever. Might look funny if he gives up ownership. If that's the right word.

There's probably as many reasons for as against, I suppose.

Anyway, hopefully he'll take some comfort from knowing the offers there.