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Shouting in the Datacenter (2008) [video]

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Re: Shouting in the Datacenter (2008) [video]

#11
post #9

In case anyone needs to know, the shouter in question is none other than Brendan Gregg (of flame graph, eBPF, and Systems Performance fame). And the guy who took the video is Bryan Cantrill of Oxide Computer, DTrace, and Joyent.

I think Brendan is still peeved that this video is his most viewed video on Youtube even after all this time.

Re: Shouting in the Datacenter (2008) [video]

#12
post #9

In case anyone needs to know, the shouter in question is none other than Brendan Gregg (of flame graph, eBPF, and Systems Performance fame). And the guy who took the video is Bryan Cantrill of Oxide Computer, DTrace, and Joyent.

No post body was provided.

Re: Shouting in the Datacenter (2008) [video]

#13

I recall this fondly when it came out. I had a few racks of Sun servers at that time...and anyone I showed the video too were convinced it was bullshit. April Fools anyone? However, Brendan and Bryan know their onions...and all the naysayers had to pause and think a bit. It too crazy to believe...and too crazy to not believe. I miss this stuff. Edit: This was done when everyone ran spinning media. I wonder how modern…

This works. I tried this on a Sun ZFS7320 under synthetic load to utilize all disks. We all laughed to the video, too.

I did it on our fishworks box as well, before we put data on it. That could have been an amazing product if not for Oracle.

Re: Shouting in the Datacenter (2008) [video]

#14
I have a colleague who was on the on-call rotation for some of our systems hosted in a datacenter our company owned. During this rotation he got unlucky in that the datacenter detected fire and decided to disperse gas that displaces oxygen (I think it was Halon gas?). Those systems are no joke - you have a short warning before you are supposed to put on a mask or get out of the server room otherwise you will just suffocate.

Anyways, no fire damage was detected but oh boy... he had to run around various tech stores left and right to buy about 50-100 enterprise grade spinning disks before returning to the site. The fire suppression system somehow broke most of the hard drives in the server room.

This was more than a decade ago, however. Most of the disks are replaced with SSDs and so far they seem to be much more resilient than the spinning ones.

Re: Shouting in the Datacenter (2008) [video]

#18

I have a colleague who was on the on-call rotation for some of our systems hosted in a datacenter our company owned. During this rotation he got unlucky in that the datacenter detected fire and decided to disperse gas that displaces oxygen (I think it was Halon gas?). Those systems are no joke - you have a short warning before you are supposed to put on a mask or get out of the server room otherwise you will just suf…

I was once told by a datacenter operator that this is due to the pressure change when they pump the gas in and that we should plan on replacing all HDDs should the fire alarm go off.

...and I think it was Argon...

Re: Shouting in the Datacenter (2008) [video]

#19

I have a colleague who was on the on-call rotation for some of our systems hosted in a datacenter our company owned. During this rotation he got unlucky in that the datacenter detected fire and decided to disperse gas that displaces oxygen (I think it was Halon gas?). Those systems are no joke - you have a short warning before you are supposed to put on a mask or get out of the server room otherwise you will just suf…

> The fire suppression system somehow broke most of the hard drives in the server room

Possibly another case of loud noise when the gas is released - see e.g.

https://www.theregister.com/2018/04/26/decibels_destroy_disk...

https://www.bbc.co.uk/news/technology-37337868

Re: Shouting in the Datacenter (2008) [video]

#20
post #18

I have a colleague who was on the on-call rotation for some of our systems hosted in a datacenter our company owned. During this rotation he got unlucky in that the datacenter detected fire and decided to disperse gas that displaces oxygen (I think it was Halon gas?). Those systems are no joke - you have a short warning before you are supposed to put on a mask or get out of the server room otherwise you will just suf…

I was once told by a datacenter operator that this is due to the pressure change when they pump the gas in and that we should plan on replacing all HDDs should the fire alarm go off. ...and I think it was Argon...

Thanks for jogging my memory!

It was indeed Argon, not Halon, and the pressure issues that broke HDDs.

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