1
vote
1answer
33 views

sg_map & lsscsi showing old storage version

I am using SUN storage and recently upgraded/refreshed my ISCSI LUN storage. We have replicated old storage to new storage and attached to our servers. I can see at SUN storage side that storage is ...
0
votes
1answer
170 views

LUN storage disk in 2 servers, can't see the files

I have one LUN disk connected over FC with linux server ( with centos) and esxi server with VM in Centos. (Two machines work in different LAN's.) In both machines i see this disk. In VM i created the ...
0
votes
1answer
206 views

IBM DS300 SAN, Need to expand partitions on LUN

I have a IBM DS300 SAN, and I have setup one LUN with 2.7 TB. I have this LUN setup with 2 partitions, one 130GB partition, and one 1.27TB partition. I have an additional 1.3TB free space. I would ...
2
votes
4answers
413 views

Drobo Thin Provisioning: What happens when you run out of space?

I'm thinking about getting a Drobo S to add some storage on a Windows Server 2008 R2 box. The Drobo offers thin provisioning. While I will only have 4.5TB of space initially, I'd like to use thin ...
2
votes
1answer
3k views

Is it possible to query the LUN ID of a list of windows server?

I'm trying a combination of FCINFO and PSEXEC to get the LUN ID (LUN NUMBER) used by servers, but i cant get this information directly from fcinfo. I've also try using WMI until i learned that i ...
0
votes
1answer
121 views

LUNs and snapshot pool size

Typical mail server, let's say 20GB of mails, partition size 100GB. I'm transferring to a LUN on shared storage P2000 and designing the whole thing. What it is typical snapshot size in this situation ...
6
votes
5answers
789 views

LUNs and virtual machines

I have HP P2000 + XenServer solution working. What I'm thinking about is how to create LUNs for 20 virtual machines. Separate LUN for every VM ? It gives me ability to backup the specific virtual ...
1
vote
1answer
538 views

In Debian (>= 5.0 lenny) how to set scsi_mod's max_luns option?

The scsi_mod has this option max_luns which is the "last scsi LUN". How can I view the current setting and change it?
2
votes
1answer
660 views

What is better to have more LUNs or more Storages

what is better to have - more LUNs or more Storages. Actually i have 1 storage ESXi per 1 LUN so there are about 15 LUNs and 15 storages. Now there is a kind of problem because the LUNs have different ...
1
vote
2answers
647 views

Share SCSI DAS enclosure (vtrak m210p) between multiple servers?

I've got a Promise vTrak m210p subsystem. It supports LUN mapping & masking, and has two SCSI channels (2 VHDCI ins & 2 outs on rear of device). I believe this question will probably apply ...
7
votes
4answers
12k views

What is the difference between LVM and LUN

Both seem to be a virtualization layer on top of physical disks. I'm having a hard-time understanding each of them and the difference between them.