Eric Shubert | 16 May 2013 21:34

READM FPDMA QUEUED errors

One of my servers was throwing messages to the console (dmesg) like:
ata 3.00: exception mask ... frozen
failed command: READ FPDMA QUEUED
status: { DRDY }                (timeout)

These errors showed for both ata 3.00 and 1.00, which correspond to the 
mirrored host drives (software, not udat).

I've seen this error only on this one (of 6) using the Asus E35M1-M Pro 
motherboard. What's a little different with this host are the hard 
drives. They're both WD2500JS-75 models, circa 2007 IIRC. I suspect 
these older drives do not (fully) support some functionality that the 
software is attempting to use.

The apparent solution was found here:
https://bugzilla.redhat.com/show_bug.cgi?id=611350
Adding the "pcie_aspm=off" kernel parameter has indeed eliminated the 
messages.

I haven't the time to investigate further, but wanted to leave this 
breadcrumb here for starters.
HTH.

--

-- 
-Eric 'shubes'
    _
   °v°
  /(_)\
   ^ ^
(Continue reading)

Eric Shubert | 7 May 2013 02:22

Parted User's Manual

http://www.gnu.org/software/parted/manual/parted.html
This manual is indispensable when working with gpt partitions.
(note to self)

--

-- 
-Eric 'shubes'
    _
   °v°
  /(_)\
   ^ ^
Eric Shubert | 1 May 2013 16:53

Router/Bridge Linux Firewall

http://www.zeroshell.org/

Zeroshell might be a suitable replacement for IPCop in situations where 
WAN network bonding and QoS are needed. It also has strong 
authentication features. I think it's worth a close look.

--

-- 
-Eric 'shubes'
    _
   °v°
  /(_)\
   ^ ^
dwayne | 10 Apr 2013 02:55
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Linux fatware? These distros need to slim down | Data Center - InfoWorld

http://www.infoworld.com/d/data-center/linux-fatware-these-distros-need-slim-down-215757?page=0,0

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Eric Shubert | 9 Apr 2013 02:41

Nice pice on virtio

http://www.ibm.com/developerworks/linux/library/l-virtio/index.html

--

-- 
-Eric 'shubes'
    _
   °v°
  /(_)\
   ^ ^
dwayne | 31 Mar 2013 20:22
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» Linuxaria – Everything about GNU/Linux and Open source Monitor your bandwidth from the Linux shell

http://linuxaria.com/article/monitor-your-bandwidth-from-the-linux-shell?lang=en

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dwayne | 31 Mar 2013 19:43
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Backup email with a single command

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dwayne | 15 Feb 2013 18:11
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Linux Security – Server Hardening | Pinehead.TV

http://pinehead.tv/linux/linux-security-server-hardening/
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dwayne | 15 Feb 2013 18:02
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Intel brings flash cache acceleration to Linux servers | ZDNet

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James Dugger | 4 Jan 2013 07:07
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Re: list Digest, Vol 57, Issue 1

Eric,

Thanks for the updated information.  I think I got confused with the dual gateway stanzas shown in the list of the installation wiki.  Proxmox wouldn't set both up and when it initially set it up I was left without access to the hosts webserver.  That is back and I have access to the web UI again.

A couple of new questions:  I have set up the host on the flash drives as described. However I have 4 - 1TB SATA HDD's that are currently in a software RAID 5 that I have in the host system that I need to use to set up the 1st data store.  They are currently data-less and not assembled in the current system. 

Should these drives be assembled by mdadm at the host level or should they be re-configured and assembled in Proxmox trough a vm?  If vm inside Proxmox is the way to go than I have yet to find a proceedure to do this and need some direction here.

The 32GB flash based RAID is setup and mounted at /opt/vms  and has been added to Proxmox as a data store as opt.  Do I need to add ISO's for installation onto this drive separately or does Proxmox have these available.  Some sources I have read have recommended building a repository on the system.  How are these set up to start the process of building VM's.

Thanks in advance for your help.  I have a commitment at 3pm on the 12th but I will try and see if I can come in the morning.


On Mon, Dec 31, 2012 at 12:00 PM, <list-request <at> tagcose.com> wrote:
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Today's Topics:

   1. Re: list Digest, Vol 56, Issue 1 (James Dugger)
   2. Re: Can't access proxmox web UI of TAgCoSe after  configuring
      vmbr's (Eric Shubert)


----------------------------------------------------------------------

Message: 1
Date: Mon, 31 Dec 2012 01:27:36 -0700
From: James Dugger <james.dugger <at> gmail.com>
To: list <at> tagcose.com
Subject: Re: [tagcose] list Digest, Vol 56, Issue 1
Message-ID:
        <CAOXWiHhut0DyNW-2tQ=BTW8UX1JO96nLK2NyojCcJbBi8-RYrA <at> mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

I have networking up again.  I had to change the eth0 to static and not
bridge it with vmbr0.  Regarding the ip addressing from the tutorial, I
can't seem to get this to work?

   - vmbr0 - IP is *192.168.100.1*, subnet is *255.255.255.0*, gateway is *
   192.168.100.2*, bridged to port eth0.
   - vmbr1 - IP is *169.254.1.1*, subnet is *255.255.255.255*, no gateway,
   bridged to port eth1.
   - vmbr2 - IP is *192.168.101.1*, subnet is *255.255.255.0*, gateway is *
   192.168.101.2*, bridged to port eth2.

James
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------------------------------

Message: 2
Date: Mon, 31 Dec 2012 10:17:48 -0700
From: Eric Shubert <ejs <at> shubes.net>
To: Tagcose General List <list <at> tagcose.com>
Subject: Re: [tagcose] Can't access proxmox web UI of TAgCoSe after
        configuring vmbr's
Message-ID: <50E1C8BC.9030809 <at> shubes.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 12/31/2012 01:27 AM, James Dugger wrote:
> Ihave networking up again.  I hadto change the eth0 to static and not
> bridge it with vmbr0. Regarding the ip addressing from the tutorial,I
> can't seem to getthis to work?
>
>   * vmbr0 - IP is *192.168.100.1*, subnet is *255.255.255.0*, gateway is
>     *192.168.100.2*, bridged to port eth0.
>   * vmbr1 - IP is *169.254.1.1*, subnet is *255.255.255.255*, no
>     gateway, bridged to port eth1.
>   * vmbr2 - IP is *192.168.101.1*, subnet is *255.255.255.0*, gateway is
>     *192.168.101.2*, bridged to port eth2.
>
> James
>
> _______________________________________________

Hey James,

Glad to see you on the list, and building a tagcose server! I've been
*very* busy lately, so please be patient with list activity. We'll get
to things as we can. Hope to see you at the tagcose meetings too
occasionally. We meet on the 2nd Sat of each month at UAT in room 208.
10am-4pm or so.

I had a little trouble my first time with PVE networking as well. My
best success has been to use the web interface to configure networking,
and let PVE handle things the way it does. I expect I'll learn much of
what's going on under the covers eventually, but debian is still a
little new to me as well, so I still have a bit of a learning curve
ahead (as usual).

I've taken a look at the configuration I have (I have 6 of these
presently in production), and here's what I have in interfaces:
# network interface settings
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet manual

auto eth1
iface eth1 inet manual

auto eth2
iface eth2 inet manual

auto vmbr0
iface vmbr0 inet static
        address  192.168.130.1
        netmask  255.255.255.0
        gateway  192.168.130.2
        bridge_ports eth0
        bridge_stp off
        bridge_fd 0

auto vmbr1
iface vmbr1 inet static
        address  169.254.130.1
        netmask  255.255.255.255
        bridge_ports eth1
        bridge_stp off
        bridge_fd 0

auto vmbr2
iface vmbr2 inet static
        address  192.168.131.1
        netmask  255.255.255.0
        bridge_ports none
        bridge_stp off
        bridge_fd 0

auto vmbr3
iface vmbr3 inet static
        address  192.168.132.1
        netmask  255.255.255.0
        bridge_ports eth2
        bridge_stp off
        bridge_fd 0

auto vmbr4
iface vmbr4 inet static
        address  192.168.252.1
        netmask  255.255.255.0
        bridge_ports none
        bridge_stp off
        bridge_fd 0

auto vmbr5
iface vmbr5 inet static
        address  192.168.253.1
        netmask  255.255.255.0
        bridge_ports none
        bridge_stp off
        bridge_fd 0

The .130. .131. and .132. networks correspond to IPCop green, DMZ and
Blue respectively. These will be subnet numbers that you choose which
are appropriate for your host. The IPCop VM has 4 network interfaces:
green/LAN, red/WAN, orange/DMZ and blue/WIFI which correspond to vmbr0-3
respectively. The IPCop's addresses all (except red) end in .2 for
consistency.

I hope this gets you back in line.

Now that I look at this, the vmbr2,3 host addresses should probably be
169.254 numbers. There's no reason why the DMZ and WIFI subnets should
have direct access to the host, and it would be more secure if they didn't.

As the wiki is a work in progress, anything you can suggest (or do)
regarding improvements there will be welcome.

Thanks for keeping us abreast of your progress.

--
-Eric 'shubes'

--
-Eric 'shubes'


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End of list Digest, Vol 57, Issue 1
***********************************



--
James

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James Dugger | 31 Dec 2012 09:27
Picon

Re: list Digest, Vol 56, Issue 1

I have networking up again.  I had to change the eth0 to static and not bridge it with vmbr0.  Regarding the ip addressing from the tutorial, I can't seem to get this to work?
  • vmbr0 - IP is 192.168.100.1, subnet is 255.255.255.0, gateway is 192.168.100.2, bridged to port eth0.
  • vmbr1 - IP is 169.254.1.1, subnet is 255.255.255.255, no gateway, bridged to port eth1.
  • vmbr2 - IP is 192.168.101.1, subnet is 255.255.255.0, gateway is 192.168.101.2, bridged to port eth2.
James

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