Linked Questions

4 votes
2 answers
628 views

Virtualized Storage for other VMs on ESXi host [duplicate]

This question is two fold. Part 1: Is it a bad idea to virtualize a storage solution and run VMDKs off of that as opposed to the original VMFS datastore. Essentially lets assume I have 2 TB worth ...
VM_Storage_Inception's user avatar
25 votes
2 answers
33k views

For L2ARC and ZIL: is it better to have one large SSD for both, or two smaller SSDs?

Main references ZFS L2ARC (Brendan Gregg) (2008-07-22) and ZFS and the Hybrid Storage Concept (Anatol Studler's Blog) (2008-11-11) include the following diagram: Question Should I interpret the ...
Graham Perrin's user avatar
11 votes
2 answers
3k views

Are consumer class hard disks okay for zfs?

I just recently bought a new server an HP DL380 G6. I replaced the stock smart array p410 controller with an LSI 9211-8i. My plan is use ZFS as the underlying storage for XEN which will run on the ...
AtomicPorkchop's user avatar
3 votes
3 answers
2k views

VMware ESXi: Pause process of VM (for allowing NFS storage to restart), any side effects on databases, AD, special cases?

Situation: On an integrated All-In-One ESXi/ZFS-Storage server, where the storage VM uses bare metal disks and exports the filesystems via NFS (or iSCSI) back to ESXi, which uses it as pool storage ...
user121391's user avatar
  • 2,562
8 votes
2 answers
11k views

What's in my ZFS ARC and L2ARC caches?

I have a simple ZFS setup at home, four disks mirrored, 8GB ram and 120GB Intel X25-M SSD for L2ARC. I ran zpool add poolname cache cXtXdX then generated load and eagerly tracked the warming process ...
notpeter's user avatar
  • 3,525
7 votes
3 answers
1k views

Recommendations: configuring a 10GbE NAS stack for virtualisation storage

I'll try as hard as I can to word this so it is not considered a shopping list. We have been successfully running a dev/test ESXi environment for some time, with a couple of Dell PE2950III servers ...
jimbobmcgee's user avatar
  • 2,685
3 votes
3 answers
2k views

Is it safe to boot a linux server from a USB drive?

I have an HP DL360 G7 server I plan to install KVM and ZFS on. The purpose is going to be a lab in a box. I have the 8 drive bays in the front loaded with 4 drives and an SSD (for the ZFS ZIL cache). ...
AtomicPorkchop's user avatar
7 votes
3 answers
2k views

OS X server large scale storage and backup

I really hope this question doesn't come across as trolling or asking for buying advice. It's not intended. I've just started working for a small ad agency (40 employees). I actually quit being a ...
mered61's user avatar
  • 73
4 votes
1 answer
4k views

ZFS (NexentaStor) and 4k Advanced Format Partition Alignment

I have a storage system that contains 8 x 1TB drives that use the 4k sector size "Advanced Format". I'm planning to run NexentaStor on this hardware and want to ensure that I'm taking the 4k sector ...
ewwhite's user avatar
  • 198k
3 votes
2 answers
6k views

How can I setup PCI passthrough for my HighPoint 1144A USB 3.0 card under ESXi 5.1?

I have an Apple Mac Pro (MacPro5,1) running VMware ESXi 5.1.0 (799733) with a HighPoint RocketU 1144A USB 3.0 PCI-express card installed. Given that VMware ESXi 5.1 doesn't support USB 3.0 for host-...
Josh's user avatar
  • 9,218
3 votes
1 answer
3k views

How do physical disks passed through ESXi perform vs. passing through HBAs?

Context: I have a SAN operating system (Nexenta) that runs on ESXi. It has a couple of HBAs passed through to it already, via VT-d. All of the HBAs for the SAN OS are full (no free connectors). I ...
Zac B's user avatar
  • 841
6 votes
2 answers
2k views

Why did I experience checksum errors with a ZFS filesystem on an ESXi RDM?

I have a VMware ESXi 4.1 server which I recently added 2x1TB SATA drives to. This machine runs a NexentaStor Community VM which hosts ZFS filesystems. Before adding the new drives, all the ZFS zpools ...
Josh's user avatar
  • 9,218
4 votes
1 answer
3k views

Is it possible to boot from a passthrough LSI 2008 SAS controller under VMware ESXi?

I currently have Solaris 11 Express running on bare metal. I'd like to convert the machine to an ESXI host and run the existing os as a virtual machine. I have ESXI setup, the virtual machine made, ...
Kurt's user avatar
  • 211
6 votes
1 answer
2k views

Drives randomly dropping from RAID array

We have 3x 3TB WD Red drives configured in a RAID 5 on an HP P812 controller with the latest firmware on. However, drives keep being dropped randomly from the array upon reboots, though not always. ...
Seb Boulet's user avatar
1 vote
3 answers
2k views

How can I determine the performance penalty of VT-d vs. baremetal?

I am looking to configure my server in a slight odd way to create a private cloud setup. I have to take the HBA that my storage disks are tied to and pass it into a VM (probably xen) to allow the ...
AtomicPorkchop's user avatar

15 30 50 per page