This will really lower competition in the SAN space. Only a few viable vendors left. Nimble was one of the few major players.
I disagree. What about Tintri, Kaminario, or Tegile? There are still plenty of vendors out there in Nimble's competitive tier. I mean they don't compare to HDS or IBM but again, Nimble is a completely different use case.
Honestly I think it would have made more sense for HPE to acquire Tintri for their portfolio at a reasonable price. Nimble is awesome for its own use case, but the acquisition seemed to be just one of appeasement to shareholders.
Unless they are shifting gears and trying to get more competitive in small-medium markets as an all around vendor (aside from adding Nimble, thinking of them purchasing Aruba a couple years ago as well).
Also the needs of a SAN are different than the needs of a LAN. So you likely want different switches. I'd love Netgear Prosafe unmanaged on my SAN but would generally prefer Ubiquiti EdgeSwitches on my LAN.
Any opinion on Unifi Switches yet?
We use one in the lab and it's been great, but we aren't pushing its limits or anything.
I didn't get to make it up, but I have been watching the sessions and burning up my data plan. Thanks for posting these. I also wanted to take a minute to call out the guy sitting front and center to just surf the internet the entire time SAM is talking.
I didn't even notice that, I'm going to look for it now.
I added a header into the main topic list for that. But it is going to be later in the Advanced Topics, section. Oddly, I know of pretty much no standard Linux Administration tomes that cover DRBD. It's so core, very odd that it so often gets missed.
Could it be that most Linux Admin's don't know about it until they go searching for it? ...That's how I found out about it.
You would hope that the people writing the books would know, though!
I think describing the heads as moving in and out is more appropriate since they're mounted on an armature, like a record player, and not forward or backward. I often use record players as a description for clients when they ask how drives work.
In my writing, I try to avoid use 'but' and things like it (however, etc.). Replace the word 'but' with 'and' as an exercise to see how it changes your readers' perception.
You've got a couple sentences that are like Yoda. Eg, by doing this, and it's unnecessary.
Similary, the logical volume... You missed a comma. The same occurs in drive impressions, the stack.
A good article, and a great way to open discussion on SANs and how volumes, drives and RAID presentations can be partitioned or utilized efficiently.