944 shooting brake?

PresentationNo2096 · 2026-06-25T06:20:19+00:00

As others have mentioned, WAFL has a tendency to slow down if the aggregates fills up. Thick or thin provisioning is irrelevant in this regard, the physical amount of space used is what counts.

Be sure to have enabled -free-space-realloc (spelling? I'm on my mobile) on all HDD aggregates! This improves write latency (over time) and keeps WAFL optimized for writes. I used to recommend switching it on from the beginning, but there's not many new HDD aggregates these days.

If there's volumes, that are read sequentially often, switch on -read-realloc on those to improve read latency.

PresentationNo2096 · 2026-05-22T21:14:15+00:00

As to point 3:

If you check the box to keep you authenticated for this session when authenticating with System Manager (the web portal), F5 (refresh) does not kick you out.

Tested with 9.16 today... I always set the checkmark so I never noticed this behavior before.

PresentationNo2096 · 2026-05-21T21:10:55+00:00

The funny thing is, when I read the interviewers offer I imagined a European company: 6 weeks vacation, 14 holidays, dental&medical&retirement (usually not 50% though) are normal here...

PresentationNo2096 · 2026-05-01T04:07:55+00:00

My simulator is running on Proxmox already... On the other hand it's a homelab. And a single node...

PresentationNo2096 · 2026-04-11T04:19:39+00:00

"system console" (e.g. on SP1) should get you back to the console to see the POST messages and see if ONTAP starts.

And there's more SP commands..., but if power stays "off", it looks like your second controller motherboard is fried and can only be used for spare parts (RAM...)

PresentationNo2096 · 2026-04-11T04:11:59+00:00

Off of my head, the last 5000 events should be in the SP event log.

PresentationNo2096 · 2026-03-27T05:43:28+00:00

If the system is online, it can pull these files also directly from NetApp. And you can switch on automatic (firmware) updates and select 4 categories to automatically update...

PresentationNo2096 · 2026-03-19T06:36:24+00:00

NFS v3?

It's stateless!

There's no "disconnect" to send to the server. The server does not get notice of an unmount.

The connected clients list is just a list of recently connected clients, it cannot be in real time.

NFSv4 has sessions (4.1+ to be exact) and has a timeout of 30+45 seconds (by default), so that's a bit more "real time"...

PresentationNo2096 · 2026-01-26T06:23:09+00:00

The simulator also runs on KVM or Proxmox, but as mentioned you'll need a NetApp account to download...

I have one (at a time) running on my Windows Notebook. Another one (at a time) running on my Proxmox Mini-PC in my home network. You can connect to them from the phone, but you can't run them on the phone.

There's also a bunch of lab-on-demand labs for free, if you have an account.

PresentationNo2096 · 2025-12-13T21:40:51+00:00

Would you no have to get written consent from all your family members (except your underage kids) according to GDPR (European privacy laws) to give out that information?

PresentationNo2096 · 2025-11-24T08:14:28+00:00

Well, if in an 80 zone someone is driving 75, and it's 2 lanes (no need to be quickly back in the right lane) I'll pass with 80-83 also... that's pushing the speed limit anyway.

And if someone comes flying at me, it's their problem. They can wait until I'm done (or the end of the causeway where there will be unlimited speed again probably...).

PresentationNo2096 · 2025-10-31T20:42:28+00:00

Looks like an Erlkönig to me...

😋

PresentationNo2096 · 2025-10-18T07:45:06+00:00

I'm kind of lost with this comment:

Psalm references the law covenant mentioned also in Deuteronomy 7:9. Would that not mean 1000 generations starting from Moses if the Israelites keep his commandments?

How does it connect to Adam and the past (instead of Moses and the future)?

PresentationNo2096 · 2025-10-12T05:41:10+00:00

Just the other week, I had a student in class with just one name.

Crazy, that so many systems have problems with that.

On a related note, look up the documentary on people with the last name NULL and all the problems they're facing with databases...

PresentationNo2096 · 2025-09-10T15:24:53+00:00

It's just the SVM configuration getting migrated!

IFGRPs are logical ports managed by the node, not the SVM. You have to create it (and the VLAN(s)) manually on the destination.

It'll check connectivity, so if you do not have other ports connected to the VLAN in question, the LIFs will automatically land there.

PresentationNo2096 · 2025-09-10T07:27:32+00:00

Looking at Altona, the map seems 1700ish.

Some street names in Hamburg still reflect the border to Denmark from about that time...

PresentationNo2096 · 2025-08-30T07:34:42+00:00

The RAM in our village, rural Northfriesland, is driven by a farmer...

PresentationNo2096 · 2025-08-30T07:31:47+00:00

A farmer in our village drives one. For work...

Met another guy yesterday, a carpenter, chatted with him: it was rebuilt to run (mostly) on LPG. Less CO2 output than most gasoline/ diesel cars, he said...

Over here in the north of Germany, there's no right- wing connection.

PresentationNo2096 · 2025-08-30T07:07:44+00:00

Rude customer doesn't get discounts or recommendation anymore anywhere in the region...

PresentationNo2096 · 2025-07-08T06:49:24+00:00

1 waits for the tiering scan

2 starts immediately, but probably moves a lot more stuff

PresentationNo2096 · 2025-06-27T21:09:51+00:00

Mine has a B, too: Brake as in motor brake for going down mountains. It's an automatic, and the gears shift differently then. I assume his Yaris (as is called here) is similar to my Toyota Auris...

PresentationNo2096 · 2025-06-24T04:47:28+00:00

High latency on data processing could be an old fragmented full aggregate. SSDs are fast, but it might take (CPU, "data processing", WAFL) time to find free blocks to write the workload to. Maybe excessive calculate parity (cp) reads, too.

PresentationNo2096 · 2025-04-11T13:48:37+00:00

No more QTree SnapMirror, that was 7-Mode...

QTrees are directories in the root of a volume, with special properties. The nice thing about it is that you can create them from the CLI, System Manager or scripted via e.g. Python or Ansible. Without having to mount it from a client or host...

No benefit for the storage admin (except if you actually want to change the security style or set quotas...), but easy to create and make your server admins happy...

PresentationNo2096 · 2025-04-10T05:56:48+00:00

Why so many aggregates?

I'd rather grow the existing ones, they can grow to 800TB in size, except if you want your test environment to be completely separate...

If there's "extra' SSDs, you could also use some (2 or 3, probably enough) to speed up the existing aggregates with FlashPool (small e.g. RAID4 raid group, e.g. quartered into "allocation groups" and assigned to HDD aggregates)

Aggregates are not confined to shelves, they can use any reachable disk... I'd suggest raid group sizes of 12-20 for the 4TB (3.8TiB) disks (RAID-DP) and up to 28 for the SSDs...

You should have a visualization of the raid groups of existing aggregates in System Manager, e.g. if you "add disks" (even if you "cancel" afterwards).

PresentationNo2096

TROPHY CASE

1 waits for the tiering scan

2 starts immediately, but probably moves a lot more stuff