RHEL5.5 + EMC AX4-5i - kernel errors

2010-08-04 Thread john fish
Hi, Does anyone have experience with linux (RHEL5.5) + EMC AX4-5i ? I have 4 virtual disks in EMC, but /proc/partitions shows 16 .. lot of them are not accessible , and also I get kernel errors: end_request: I/O error, dev sdc, sector 52428792 Buffer I/O error on device sdc, logical block

Re: RHEL5.5 + EMC AX4-5i - kernel errors

2010-08-04 Thread Mike Christie
On 08/04/2010 02:25 AM, john fish wrote: Hi, Does anyone have experience with linux (RHEL5.5) + EMC AX4-5i ? I have 4 virtual disks in EMC, but /proc/partitions shows 16 .. lot of them are not accessible , and also I get kernel errors: end_request: I/O error, dev sdc, sector 52428792 Buffer

Re: equallogic and double connections for multipathing with Debian 5

2010-08-04 Thread Mike Vallaly
Sorry for the lateness in my reply. Just stumbled across this thread.. ;) Part of the problem with MPIO in linux with two (or more) interfaces connected to the same Ethernet segment is arp flux. Essentially all traffic will by default only exit out one path (mac address) on a multi-homed network.

detected conn error (1011)

2010-08-04 Thread Goncalo Gomes
I'm running a setup composed of: Linux 2.6.27 x86 based on SLES + Xen 3.4 (as dom0) running a couple of RHEL 5.5 VMs. The underlying storage for these VMs is iSCSI based via open-iscsi 2.0.870-26.6.1 and a DELL equallogic array. Whenever the equallogic rebalances the LUNs between the

Re: detected conn error (1011)

2010-08-04 Thread Mike Christie
On 08/04/2010 04:12 PM, Goncalo Gomes wrote: I'm running a setup composed of: Linux 2.6.27 x86 based on SLES + Xen 3.4 (as dom0) running a couple of RHEL 5.5 VMs. The underlying storage for these VMs is iSCSI based via open-iscsi 2.0.870-26.6.1 and a DELL equallogic array. Whenever the