Some Server Storage I/O Benchmark Workload Scripts | Part 1
This is part one of a two-part series of posts about using some common server
storage I/O benchmark tools and workload scripts. View part II here which
includes the workload scripts and where to view sample results.
There are various tools and workloads for server I/O benchmark testing,
validation and exercising different storage devices (or systems and
appliances) such as Non-Volatile Memory (NVM) flash Solid State Devices
(SSDs) or Hard Disk Drives (HDD) among others.
Various NVM flash SSD including NVMe devices
For example, lets say you have an SSD such as an Intel 750 (here, here, and
here) or some other vendors NVMe PCIe Add in Card (AiC) installed into a
Microsoft Windows server and would like to see how it compares with expected
results. The following scripts allow you to validate your system with tho... (more)
What metrics matter for social media and networking?
Of course the answer should be it depends.
For example, would that be number of followers or how many posts, tweets or
videos you post?
How about the number of page hits, pages read or unique visitors to a site,
perhaps time on site?
Or, how about the number of times a visitor returns to a site or shares the
link or information with others?
What about click through rates, page impressions, revenue per page and
related metrics?
Maybe the metric is your blog ranking or number of points on your favorite
community site such as ... (more)
There is a new (free) book that I'm a co-author of along Bruce Grieshaber and
Larry Jacob (both of LSI) along with foreword by Harry Mason of LSI and
President of the SCSI Trade Association titled SAS SANs for Dummies
compliments of LSI.
This new book (ebook and print hard copy) looks at Serial Attached SCSI (SAS)
and how it can be used beyond traditional direct attached storage (DAS)
configurations for support various types of storage mediums including SSD,
HDD and tape. These configuration options include as entry-level SAN with SAS
switches for small clusters or server virtual... (more)
Recently while I was in Europe presenting some sessions at conferences and
doing some seminars, I was invited by Ed Saipetch (@edsai) of Inktank.com to
attend the first Ceph Day in Amsterdam.
As luck or fate would turn out, I was in Nijkerk which is about an hour train
ride from Amsterdam central station plus a free day in my schedule. After a
morning train ride and nice walk from Amsterdam Central I arrived at the
Tobacco Theatre (a former tobacco trading venue) where Ceph Day was underway,
and in time for lunch of Krokettens sandwich.
Let's take a quick step back and address ... (more)
In the first part of this post I showed how to use a tip from Dunacn Epping
to fake VMware into thinking that a HHDD (Hybrid Hard Disk Drive) was a SSD.
Now let's look at using a tip from Dave Warburton to make an internal SATA
HDD into an RDM for one of my Windows based VMs.
My challenge was that I have a VM with a guest that I wanted to have a Raw
Device Mapping (RDM) internal SATA HDD accessible to it, expect the device
was an internal SATA device. Given that using the standard tools and reading
some of the material available, it would have been easy to give up and quit
since ... (more)
Greg Schulz is founder of the Server and StorageIO (StorageIO) Group, an IT industry analyst and consultancy firm. Greg has worked with various server operating systems along with storage and networking software tools, hardware and services. Greg has worked as a programmer, systems administrator, disaster recovery consultant, and storage and capacity planner for various IT organizations. He has worked for various vendors before joining an industry analyst firm and later forming StorageIO.
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