Linked by Thom Holwerda on Tue 17th Sep 2013 22:04 UTC, submitted by garyd
General Development

ZFS is the world's most advanced filesystem, in active development for over a decade. Recent development has continued in the open, and OpenZFS is the new formal name for this open community of developers, users, and companies improving, using, and building on ZFS. Founded by members of the Linux, FreeBSD, Mac OS X, and illumos communities, including Matt Ahrens, one of the two original authors of ZFS, the OpenZFS community brings together over a hundred software developers from these platforms.

ZFS plays a major role in Solaris, of course, but beyond that, has it found other major homes? In fact, now that we're at it, how is Solaris doing anyway?

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RE[3]: Solaris is doing well
by phoenix on Fri 20th Sep 2013 20:07 UTC in reply to "RE[2]: Solaris is doing well"
phoenix
Member since:
2005-07-11

The question is if Linux scales on a single fat server. And Linux does not scale on such a SMP server, because there have never existed such a Linux server with 16 or 32 cpus for sale.


Do you mean 16 or 32 individual CPU sockets on a single motherboard? Or do you mean 16 or 32 individual CPU cores spread across 4 (or more) physical CPUs in separate physical sockets?

If you mean the former, sure, I've never heard of one of those, running any OS. They probably exist, I've just never seen anything online or IRL with more than 4 physical CPU sockets.

If you mean the latter, you're talking out your arse. ;) We have 16 core servers running Linux right here in our data centre (Debian Linux + KVM running on a dual-socket mobo with 8 cores per socket). And SuperMicro makes motherboards that support 4 physical sockets, with 16 cores per socket (AMD, so no hyperthreading crap) for a total of 48 CPU cores ... all fully supported by Linux.

Perhaps you should clarify which you mean (physical CPUs or CPU cores).

Reply Parent Score: 3

RE[4]: Solaris is doing well
by Kebabbert on Sat 21st Sep 2013 11:09 in reply to "RE[3]: Solaris is doing well"
Kebabbert Member since:
2007-07-27

"The question is if Linux scales on a single fat server. And Linux does not scale on such a SMP server, because there have never existed such a Linux server with 16 or 32 cpus for sale.


Do you mean 16 or 32 individual CPU sockets on a single motherboard? Or do you mean 16 or 32 individual CPU cores spread across 4 (or more) physical CPUs in separate physical sockets?

If you mean the former, sure, I've never heard of one of those, running any OS. They probably exist, I've just never seen anything online or IRL with more than 4 physical CPU sockets.

If you mean the latter, you're talking out your arse. ;) We have 16 core servers running Linux right here in our data centre (Debian Linux + KVM running on a dual-socket mobo with 8 cores per socket). And SuperMicro makes motherboards that support 4 physical sockets, with 16 cores per socket (AMD, so no hyperthreading crap) for a total of 48 CPU cores ... all fully supported by Linux.

Perhaps you should clarify which you mean (physical CPUs or CPU cores).
"
In a socket, there is only one cpu, yes? You dont put two or three cpus into one socket, no? Sure, a cpu might have 4 cores or so. But still, in a socket there is only one cpu. It is a bijection between cpus and sockets.

So, yes, I mean 32 socket Linux servers. Not 32 core Linux servers. There has never existed 32 socket Linux servers for sale. If anyone can find such a large Linux server, please post it here. Then I will stop saying this.

Reply Parent Score: 2