On 17/09/2013 07:42, Grant wrote:
Has anyone tried Nimsoft Monitoring? It's included at Soft Layer
which must mean a free license.
No. IBM has a general strategy to suck you in
so caveat emptor.. You really wan to install
IBM binaries on any machine? (Think NSA).
Nevermind!
It
Is the Gentoo Software RAID + LVM guide the best place for RAID
install info if I'm not using LVM and I'll have a hardware RAID
controller?
Not ready to take the ZFS plunge? That would greatly reduce the complexity
of RAID+LVM, since ZFS best practice is to set your hardware raid controller
Munin and jffnms bear no real relation to each other. Yes they are
similar in that both can draw graphs but that's about where the
similarity ends.
Munin's job is to periodically poll a device using whatever means is
available and gather data from the device. The data is always in the
form
If it's Type 2, then four drives with a spare is equally tolerant.
Slightly better, even, if you take into account the reduced probability
of 2/5 of the drives failing compared to 2/6.
Thank you very much for this info. I had no idea. Is there another
label for these RAID types besides
I'm convinced I need 3-disk RAID1 so I can lose 2 drives and keep
running. I'd also like to stripe for performance, resulting in
RAID10. It sounds like most hardware controllers do not support
6-disk RAID10 so ZFS looks very interesting.
Can I operate ZFS RAID without a hardware RAID
Is the Gentoo Software RAID + LVM guide the best place for RAID
install info if I'm not using LVM and I'll have a hardware RAID
controller?
Not ready to take the ZFS plunge? That would greatly reduce the complexity
of RAID+LVM, since ZFS best practice is to set your hardware raid controller
Am 17.09.2013 09:20, schrieb Grant:
Performance doesn't seem to be one of ZFS's strong points. Is it
considered suitable for a high-performance server?
A high performance server for what?
But you've already given yourself the answer: if high performance is
what you are aiming for it
On Tue, Sep 17, 2013 at 2:28 PM, Grant emailgr...@gmail.com wrote:
Is the Gentoo Software RAID + LVM guide the best place for RAID
install info if I'm not using LVM and I'll have a hardware RAID
controller?
Not ready to take the ZFS plunge? That would greatly reduce the complexity
of
On Tue, Sep 17, 2013 at 2:20 PM, Grant emailgr...@gmail.com wrote:
I'm convinced I need 3-disk RAID1 so I can lose 2 drives and keep
running. I'd also like to stripe for performance, resulting in
RAID10. It sounds like most hardware controllers do not support
6-disk RAID10 so ZFS looks very
On 17/09/2013 10:05, Pandu Poluan wrote:
On Tue, Sep 17, 2013 at 2:20 PM, Grant emailgr...@gmail.com wrote:
I'm convinced I need 3-disk RAID1 so I can lose 2 drives and keep
running. I'd also like to stripe for performance, resulting in
RAID10. It sounds like most hardware controllers do not
Hi,
I remember to have accidently started amarok via ssh on my notebook (wrong
console window), with DISPLAY on my desktop. This seems to have scrapped
phonon-config and/or pulseaudio config on both systems.
After having removed these files (.pulse/ and
.kde4/share/config/phonondevicesrc) on
On Mon, 16 Sep 2013 21:23:50 -0400, gottl...@nyu.edu wrote:
So I reinstalled cups but /etc/cups/cupd.conf was not changed and
still has its old date and contents. The merge looks clean (output
below)
/etc/ is CONFIG_PROTECTed.
This part I knew, but would have expected to hear
On Tue, 17 Sep 2013 12:36:20 +0700, Pandu Poluan wrote:
That said, if your kernel supports modules, it's a piece of cake to
compile the ZFS modules on your own. @ryao has a zfs-overlay you can
use to emerge ZFS as a module.
It's also in the main portage tree.
--
Neil Bothwick
Get your
It looks like there are comprehensive ZFS Gentoo docs
(http://wiki.gentoo.org/wiki/ZFS) but can anyone tell me from the real
world about how much extra difficulty/complexity is added to
installation and ongoing administration when choosing ZFS over ext4?
Very very minimal. So minimal, in
I'm convinced I need 3-disk RAID1 so I can lose 2 drives and keep
running. I'd also like to stripe for performance, resulting in
RAID10. It sounds like most hardware controllers do not support
6-disk RAID10 so ZFS looks very interesting.
Can I operate ZFS RAID without a hardware RAID
Is the Gentoo Software RAID + LVM guide the best place for RAID
install info if I'm not using LVM and I'll have a hardware RAID
controller?
Not ready to take the ZFS plunge? That would greatly reduce the complexity
of RAID+LVM, since ZFS best practice is to set your hardware raid controller
Grant emailgr...@gmail.com wrote:
Performance doesn't seem to be one of ZFS's strong points. Is it
considered suitable for a high-performance server?
ZFS is one of the fastest FS I am aware of (if not the fastest).
You need a sufficient amount of RAM to make the ARC useful.
The only problem
Does anyone know how I get the date-extension into my gentoo-based
cyrus-imapd-server?
Stefan
On 2013-09-17 1:36 AM, Pandu Poluan pa...@poluan.info wrote:
On Sun, Sep 15, 2013 at 6:10 PM, Grant emailgr...@gmail.com wrote:
It sounds like ZFS isn't included in the mainline kernel. Is it on its way in?
Unlikely. There has been a discussion on that in this list, and there
is some
On 2013-09-17 4:05 AM, Pandu Poluan pa...@poluan.info wrote:
2. When comparing performance of 1 (one) drive, of course ZFS will
lose. But when you build a ZFS pool out of 3 pairs of mirrored drives,
throughput will increase significantly as ZFS has the ability to do
'load-balancing' among
On 17/09/2013 11:49, Grant wrote:
Is the Gentoo Software RAID + LVM guide the best place for RAID
install info if I'm not using LVM and I'll have a hardware RAID
controller?
Not ready to take the ZFS plunge? That would greatly reduce the complexity
of RAID+LVM, since ZFS best practice is to
On 2013-09-17 3:20 AM, Grant emailgr...@gmail.com wrote:
It sounds like most hardware controllers do not support
6-disk RAID10 so ZFS looks very interesting.
?? RAID 10 simply requires an even number of drives with a minimum of 4.
So, you certainly can have a 6 disk RAID10 - I've got a system
On 09/17/2013 02:43 AM, Grant wrote:
Is multi-mirroring (3-disk RAID1) support without RAID0 common in
hardware RAID cards?
Nope. Not at my pay grade, anyway. The only ones I know of are the
Hewlett-Packard MSA/EVA, but they don't call it plain RAID1. They allow
you to create virtual disk
Grant emailgrant at gmail.com writes:
jffnms is something I don't use myself, but it looks like the same class
of app as Nagios. Don't be fooled into choosing between munin and
nagios/jffnms - they are not the same thing, not even close. Use both.
thank Alan, I did not know about munin.
Hello,
On Thu, 12 Sep 2013 06:57:15 +0200 Alan McKinnon
alan.mckin...@gmail.com wrote:
What I usually is download the sources by hand, run ./configure and
see if the app directly supports pillow and take it from there. A fix
usually just needs a few minor tweaks to the ebuild.
Sabayon has
Is the Gentoo Software RAID + LVM guide the best place for RAID
install info if I'm not using LVM and I'll have a hardware RAID
controller?
Not ready to take the ZFS plunge? That would greatly reduce the complexity
of RAID+LVM, since ZFS best practice is to set your hardware raid
Is multi-mirroring (3-disk RAID1) support without RAID0 common in
hardware RAID cards?
Nope. Not at my pay grade, anyway. The only ones I know of are the
Hewlett-Packard MSA/EVA, but they don't call it plain RAID1. They allow
you to create virtual disk groups, though, so you can mirror a
It sounds like most hardware controllers do not support
6-disk RAID10 so ZFS looks very interesting.
?? RAID 10 simply requires an even number of drives with a minimum of 4.
OK, there seems to be some disagreement on this. Michael?
- Grant
Performance doesn't seem to be one of ZFS's strong points. Is it
considered suitable for a high-performance server?
ZFS is one of the fastest FS I am aware of (if not the fastest).
You need a sufficient amount of RAM to make the ARC useful.
How much RAM is that?
- Grant
Grant emailgr...@gmail.com wrote:
Performance doesn't seem to be one of ZFS's strong points. Is it
considered suitable for a high-performance server?
ZFS is one of the fastest FS I am aware of (if not the fastest).
You need a sufficient amount of RAM to make the ARC useful.
How much
On 09/17/2013 09:21 AM, Grant wrote:
It sounds like most hardware controllers do not support
6-disk RAID10 so ZFS looks very interesting.
?? RAID 10 simply requires an even number of drives with a minimum of 4.
OK, there seems to be some disagreement on this. Michael?
Any controller
On 17/09/2013 15:11, Grant wrote:
Is the Gentoo Software RAID + LVM guide the best place for RAID
install info if I'm not using LVM and I'll have a hardware RAID
controller?
Not ready to take the ZFS plunge? That would greatly reduce the
complexity
of RAID+LVM, since ZFS best practice is
On 09/17/2013 11:40 AM, Tanstaafl wrote:
On 2013-09-17 11:18 AM, Michael Orlitzky mich...@orlitzky.com wrote:
Any controller that claims RAID10 on a server with 6 drive bays should
be able to put all six drives in an array. But you'll get a three-way
stripe (better performance) instead of a
On Tue, Sep 17 2013, Neil Bothwick wrote:
On Mon, 16 Sep 2013 21:23:50 -0400, gottl...@nyu.edu wrote:
So I reinstalled cups but /etc/cups/cupd.conf was not changed and
still has its old date and contents. The merge looks clean (output
below)
/etc/ is CONFIG_PROTECTed.
This
On 09/17/2013 01:00 PM, Tanstaafl wrote:
But not 6-drive RAID w/ hot spare... ;) Anyone who can't afford to add a
single additional drive for the piece of mind has no business buying the
RAID card to begin with...
Most of our servers only come with 6 drive bays -- that's why I have
this
On 2013-09-17 12:34 PM, Michael Orlitzky mich...@orlitzky.com wrote:
For maximum fault tolerance, what you really want is,
A B
A B
A B
but, like I said, it's hard to find in hardware. The standard I linked
to calls both of these RAID10, thus the confusion.
Ok, I see where my
On 17/09/2013 15:22, Grant wrote:
Performance doesn't seem to be one of ZFS's strong points. Is it
considered suitable for a high-performance server?
ZFS is one of the fastest FS I am aware of (if not the fastest).
You need a sufficient amount of RAM to make the ARC useful.
How much RAM
On 17/09/2013 15:13, Grant wrote:
Is multi-mirroring (3-disk RAID1) support without RAID0 common in
hardware RAID cards?
Nope. Not at my pay grade, anyway. The only ones I know of are the
Hewlett-Packard MSA/EVA, but they don't call it plain RAID1. They allow
you to create virtual disk
Pandu Poluan pa...@poluan.info wrote:
On Tue, Sep 17, 2013 at 2:20 PM, Grant emailgr...@gmail.com wrote:
I'm convinced I need 3-disk RAID1 so I can lose 2 drives and keep
running. I'd also like to stripe for performance, resulting in
RAID10. It sounds like most hardware controllers do
Volker Armin Hemmann volkerar...@googlemail.com wrote:
Am 17.09.2013 09:20, schrieb Grant:
I'm convinced I need 3-disk RAID1 so I can lose 2 drives and keep
running. I'd also like to stripe for performance, resulting in
RAID10. It sounds like most hardware controllers do not support
Am 13.09.2013 19:54, schrieb Stefan G. Weichinger:
Am 12.09.2013 16:55, schrieb Yohan Pereira:
On 12/09/13 at 09:21am, Stefan G. Weichinger wrote:
ps: anyone using mosh already? Experiences? opinions?
Could someone tell me just from a general point of view if I could just
*try* to copy my
Am 17.09.2013 09:20, schrieb Grant:
I'm convinced I need 3-disk RAID1 so I can lose 2 drives and keep
running. I'd also like to stripe for performance, resulting in
RAID10. It sounds like most hardware controllers do not support
6-disk RAID10 so ZFS looks very interesting.
Can I operate
On 2013-09-17 2:00 PM, Volker Armin Hemmann volkerar...@googlemail.com
wrote:
use ECC ram. Lots of it. 16GB DDR3 1600 ECC ram cost you less than 170€.
And it is worth it. ZFS showed me just how many silent corruptions can
happen on a 'stable' system. Errors never seen neither detected thanks
to
On 2013-09-17 11:18 AM, Michael Orlitzky mich...@orlitzky.com wrote:
Any controller that claims RAID10 on a server with 6 drive bays should
be able to put all six drives in an array. But you'll get a three-way
stripe (better performance) instead of a three-way mirror (better fault
tolerance).
Am 17.09.2013 20:11, schrieb cov...@ccs.covici.com:
Volker Armin Hemmann volkerar...@googlemail.com wrote:
Am 17.09.2013 09:20, schrieb Grant:
I'm convinced I need 3-disk RAID1 so I can lose 2 drives and keep
running. I'd also like to stripe for performance, resulting in
RAID10. It sounds
Am 17.09.2013 20:11, schrieb Tanstaafl:
On 2013-09-17 2:00 PM, Volker Armin Hemmann
volkerar...@googlemail.com wrote:
use ECC ram. Lots of it. 16GB DDR3 1600 ECC ram cost you less than 170€.
And it is worth it. ZFS showed me just how many silent corruptions can
happen on a 'stable' system.
Am 17.09.2013 19:34, schrieb Tanstaafl:
On 2013-09-17 1:07 PM, Michael Orlitzky mich...@orlitzky.com wrote:
On 09/17/2013 01:00 PM, Tanstaafl wrote:
But not 6-drive RAID w/ hot spare... ;) Anyone who can't afford to add a
single additional drive for the piece of mind has no business buying
On 2013-09-17 1:07 PM, Michael Orlitzky mich...@orlitzky.com wrote:
On 09/17/2013 01:00 PM, Tanstaafl wrote:
But not 6-drive RAID w/ hot spare... ;) Anyone who can't afford to add a
single additional drive for the piece of mind has no business buying the
RAID card to begin with...
Most of
Any controller that claims RAID10 on a server with 6 drive bays should
be able to put all six drives in an array. But you'll get a three-way
stripe (better performance) instead of a three-way mirror (better fault
tolerance).
I forget why I even brought it up. I think it was in order to argue
Performance doesn't seem to be one of ZFS's strong points. Is it
considered suitable for a high-performance server?
ZFS is one of the fastest FS I am aware of (if not the fastest).
You need a sufficient amount of RAM to make the ARC useful.
How much RAM is that?
1G of RAM per 1TB of data
I have to set up a server w/ 8x 1TB in about 2 weeks and consider ZFS as
well, at least for data. So root-fs would go onto 2x 1TB hdds with
conventional partitioning and something like ext4.
Is a layout like this with the data on ZFS and the root-fs on ext4 a
better choice than ZFS all around?
Besides performance, are there any drawbacks to ZFS compared to ext4?
do yourself three favours:
use ECC ram. Lots of it. 16GB DDR3 1600 ECC ram cost you less than 170€.
And it is worth it. ZFS showed me just how many silent corruptions can
happen on a 'stable' system. Errors never seen
Besides performance, are there any drawbacks to ZFS compared to ext4?
How about hardened? Does ZFS have any problems interacting with
grsecurity or a hardened profile?
- Grant
On Tue, Sep 17, 2013 at 02:11:33PM -0400, Tanstaafl wrote:
Is there a good place to read about these kinds of tuning parameters?
Just wondering if anyone experienced running ZFS on Gentoo finds this wiki
article worthy of use: http://wiki.gentoo.org/wiki/ZFS
--
Happy Penguin Computers
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