Why am I seeing this? portmap server not responding ?

Sun Feb 10 18:24:06 UTC 2008

Hi Ryan.

  ## Try stopping portmap and xinetd service and then unexporting the export files for that particular IP and then restart your server and then start the service ie portmap and xinetd.Check logs then.

  ## Please check the following file also /etc/fstab on both server and client.

  Best of Luck.

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Today's Topics:

1. Disk partitions and LVM limits (Peter Blajev)
2. Why am I seeing this? ** portmap server not responding **?
(Ryan Golhar)
3. RE: Disk partitions and LVM limits (Geofrey Rainey)

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

Message: 1
Date: Fri, 8 Feb 2008 10:58:56 -0800
From: Peter Blajev 

Subject: Disk partitions and LVM limits
To: Red Hat List 
Message-ID: <200802081058.56499.pblajev at ucsd.edu>
Content-Type: text/plain; charset="us-ascii"

Hi,

I've got a DAS DELL MD1000 with a bunch of SATA drives in RAID 5 configuration 
with total space of 5.4TB. This box is attached to a CentOS5 system (kernel 
2.6.18-53.1.6.el5).

Any idea how to make this space usable?
Is there a limit how big a partition can be? What is the work around?
Is there a limit how big a file system ca be?

I've tried to partition it but no matter how bug partition I create fdisk 
spits out these messages on the console:
---
sdb: very big device. try to use READ CAPACITY(16).
SCSI device sdb: 10248519680 512-byte hdwr sectors (5247242 MB)
sdb: Write Protect is off
---

I decided to not partition the drive and use LVM but the physical volume 
stopped at 2TB.

So, right now I can't use LVM because of this 2TB limit and I'm not sure if I 
partition the drive how good these partitions are because of the the message 
from fdisk.

Any help or idea is highly appreciated.

Thank you
Peter

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

Message: 2
Date: Fri, 08 Feb 2008 15:06:08 -0500
From: Ryan Golhar 
Subject: Why am I seeing this? ** portmap server not responding **?
To: General Red Hat Linux discussion list 
Message-ID: <47ACB630.2050905 at umdnj.edu>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I have a server (RHEL 5) that makes 2 directories available to a bunch 
of clients via NFS. I keep seeing this particular message in the 
servers log:

Feb 8 15:02:12 sapphire kernel: portmap: server 192.168.101.164 not 
responding, timed out

The machine, 192.168.101.164 is a client machine that isn't even up at 
the moment. I remove the entry from /etc/exports for that machine and 
re-ran "exportfs -rv". I still see this message.

The server isn't mounting any file system or anything from the client 
machine. Why would I see this message on the servers logs?

Ryan

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

Message: 3
Date: Sat, 9 Feb 2008 23:42:46 +1300
From: "Geofrey Rainey" 
Subject: RE: Disk partitions and LVM limits
To: "General Red Hat Linux discussion list" 
Message-ID:

Content-Type: text/plain; charset="us-ascii"

You could change the sizing of the 5.4TB logical partition into smaller
logical partitions
Of 2TB in size, make each of these a physical volume and add them to a
volume group, then create a logical volume from that volume group. 
I don't know if this 2TB limit will affect this procedure though.

-----Original Message-----
From: redhat-list-bounces at redhat.com
[mailto:redhat-list-bounces at redhat.com] On Behalf Of Peter Blajev
Sent: Saturday, 9 February 2008 7:59 a.m.
To: Red Hat List
Subject: Disk partitions and LVM limits

Hi,

I've got a DAS DELL MD1000 with a bunch of SATA drives in RAID 5
configuration with total space of 5.4TB. This box is attached to a
CentOS5 system (kernel 2.6.18-53.1.6.el5).

Any idea how to make this space usable?
Is there a limit how big a partition can be? What is the work around?
Is there a limit how big a file system ca be?

I've tried to partition it but no matter how bug partition I create
fdisk spits out these messages on the console:
---
sdb: very big device. try to use READ CAPACITY(16).
SCSI device sdb: 10248519680 512-byte hdwr sectors (5247242 MB)
sdb: Write Protect is off
---

I decided to not partition the drive and use LVM but the physical volume
stopped at 2TB.

So, right now I can't use LVM because of this 2TB limit and I'm not sure
if I partition the drive how good these partitions are because of the
the message from fdisk.

Any help or idea is highly appreciated.

Thank you
Peter

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