xtremio

Oct
17

Snapshot Changes in XtremIO X2

I've written previously about how Snapshots (and snapshot refresh) works in XtremIO. With XtremIO X2 we changed the way a few of the snapshot-related concepts work in order to simplify things, as well as to add some additional use cases that were not possible previously.
5 min read
Apr
24

XtremIO X1 and VMware - APD v’s PDL

In general, when a Storage Controller is shutting down for any reason, XtremIO X1 will send a "Logical Unit Not
4 min read
Dec
23

XtremIO Snapshots and Veritas Volume Manager

It's been 20 years almost to the day since I started using Veritas Volume Manager, or Sun Enterprise Volume Manager
5 min read
Nov
10

Using the XtremIO REST API - Part 5

In Part 1 of Using the XtremIO REST API I covered how to access the API, and how to read
4 min read
Apr
23

Parsing XtremIO CLI Output

I generally don't recommend people use the XtremIO CLI for programmatic access - it's just so much easier and better
3 min read
Feb
03

XtremIO and VMware Path Failure Detection

In XtremIO XIOS version 4.0.10 we made an (optional) change to the SCSI error codes that the array
5 min read
Aug
23

Friends Don't Let Friends Run Oracle on ZFS

I frequently get asked why I recommend against running Oracle DBMS on ZFS, and instead recommend using ASM. The filesystem
7 min read
Jun
27

Flash testing tools - CrystalDiskMark

CrystalDiskMark is the type of tool I wouldn't even normally look at due to it's focus market, but one of
4 min read
Jun
26

Flash testing tools - Diskspd

Some time ago I wrote about Microsoft's storage performance testing tool SQLIO, with the conclusion that it was unsuitable for
2 min read
Jun
24

ZFS and Intelligent Storage

It's been almost 10 years to the day since Sun Microsystems first released ZFS as a part of the Solaris
11 min read