A physical XtremIO Management Server (XMS) has failed and requires replacement. Which two software packages are required for recovery?
The first step is to re-install the XMS image, in the event it is a physical XMS then you may install an image via a USB flash drive or for a virtual XMS simply deploy the provided VMware OVA image.
The following step is to upload the XMS software to the images directory of the XMS and login with install mode ........
Once logged into the XMS console with xinstall then perform the following sequence of steps:
1. Configuration
5. Perform XMS installation only
11. Run XMS Recovery
Options to choose when running the ''XMS Recovery'':
References:https://davidring.ie/2015/02/20/emc-xtremio-redeploying-xms-xtremio-management-server/
A storage administrator is configuring SAN switches and zoning to connect an eight X-Brick XtremIO array. A VMware ESXi server is hosted on a blade chassis with 16 HBA ports. In addition, the SAN is composed of two separate SAN switches.
What is the recommended XtremIO best practice for zoning?
In an environment where a host with two HBAs (VMware Best Practice) is connected to two fabrics and storage array with two Storage Controllers (EMC VNX, for example) the host will have four paths to a LUN: 2 Controllers x 2 HBAs = 4 paths
If you go to the extreme and configure your XtremIO with eight X-Brick, you have 16 controllers. Again, two HBAs per host and the max number of LUNs you can attach to an ESXi host will be 32... I understand, different OS'es may have different limits than VMware and this logic will not be applicable.
If you have hit the limit of 1024 paths per host (1024 / 4 controllers / 2 HBAs = 128 LUNs) and need to provision more LUNs, the best way will be to re-zone the host to limit the number of X-Bricks / Controllers the host HBA can connect to.
The following diagram displays the logical connection topology for 4 paths.
A customer has a group of applications that need storage which can provide low response times. The total I/O requirements are 75,000 IOPs with a 4 kB block size. They will have 500 LUNs and need to keep 30 daily snapshots of each LUN.
What is the smallest XtremIO configuration that will meet their needs?
A storage administrator wants to re-use some of their XtremIO thin provisioned disks attached to a Microsoft Windows 2012 host. However, the administrator notices that ''Quick Format'' of the drives is taking a long time to complete. This has an impact on the overall performance.
What should be recommended to minimize the performance impact?
It is related to TRIM/UNMAP, which is enabled per default in Server 2012(R2).
References:https://serverfault.com/questions/679211/quick-format-of-lun-in-server-2012r2-hosted-on-a-thin-provisioned-san-vol-take
When using the XtremIO PoC Toolkit, what is the purpose of the Age phase?
Proceed with filesystem aging by doing random overwrite cycles.
