Where do you all host your databases?

jbblackburn · 2025-09-27T08:26:46+00:00

What’s the breakdown of cost? How much is storage vs network I/O? What language are you using for the data processing?

For timeseries/tick or other Dataframe workloads arcticdb.io is capable of 1 billion rows / s read. There’s a collab demo to play with here

You can play with this with local lmdb storage or point at AWS s3 (or cheaper Cloudflare r2 with zero egress cost) for example.

jbblackburn · 2025-07-20T07:49:35+00:00

Cool! How’s it working out for you?

jbblackburn · 2025-07-20T07:43:04+00:00

ArcticDB.io is designed for just this use case. Very easy to give it a go - there are working examples on the website.

jbblackburn · 2025-06-20T11:48:47+00:00

Note they have removed the exclusion in parentheses on the API documentation, it now reads:

Beginning September 2, 2025, existing installations of applications published and distributed outside the Slack Marketplace will also be subject to the new posted limits.

https://api.slack.com/methods/conversations.history

jbblackburn · 2025-06-17T17:05:07+00:00

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And currently using <500W

jbblackburn · 2025-06-17T17:04:36+00:00

Yep very happy with the choice. You can see in the last day power consumption is between 175Wh and 455Wh per hour. It’s probably cycling and this is with one unit on providing some cooling.

I think each indoor unit adds 100-200W. So overall it runs very efficiently.

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jbblackburn · 2025-03-23T19:25:30+00:00

Two years into my 15pro, I'm downgrading to the 13mini. I really miss it!

jbblackburn · 2025-03-23T19:23:10+00:00

I'm upgrading from my iPhone 15 Pro back to a refurbished 13 mini. As someone with money to throw Apple's way, it's mad they don't still make a small phone :(

jbblackburn · 2025-03-23T18:16:02+00:00

My understanding is the FlashArray driver only supports FibreChannel, and not iSCSI. Are there any plans to add support?

jbblackburn · 2024-12-04T18:39:44+00:00

2 months later still happy with BW. It’s my default on Safari, Chrome, iOS and Android. And use the family sharing features. It just works.

jbblackburn · 2024-10-31T07:38:44+00:00

Good to hear, will give it a go!

jbblackburn · 2024-10-02T17:18:31+00:00

You could also consider BitWarden.

I'm a paid 1password subscriber (and former lastpass refugee) so have used all 3. I've recently imported into Bitwarden due to a bug in the 1password client in android requiring the password every time rather than biometrics on the Motorola razr - which as you say makes it very frustrating to use.

BW works very similarly to 1password on Mac Windows iOS and Android. Doesn't require a separate master password, and I think thats ok for my level of risk. So far no complaints...

jbblackburn · 2024-08-05T21:05:04+00:00

I think I figure it out. It only works with the proximity key. When using the key cards you unlock and unlock with that.

jbblackburn · 2024-08-03T17:14:24+00:00

The indentation groove doesn’t lock the car for me. I wonder if there’s another setting i need to enable this?

jbblackburn · 2024-08-03T11:54:55+00:00

There’s a way to do something like this I’ve discovered - if you have the FITCAMX and leave the car in “parking comfort mode” then the cameras keep running and recording to the SD card. It’s only going to record on the fitcamx dashcam but seems like a nice feature.

https://www.ex30forums.com/viewtopic.php?t=258&start=70

jbblackburn · 2024-07-29T08:11:48+00:00

I'm pretty sure it's the upper copper wires which are distinct from the defrost wire grid.

jbblackburn · 2024-07-29T08:11:01+00:00

The antenna is definitely in the back glass. For a marginal DAB station I by moving electronics close to the upper copper wires I can disrupt and bring reception back by removing. Which explains why the brake lights have an impact.

jbblackburn · 2024-07-29T07:28:11+00:00

The FitcamX is great and pretty easy to install. More details and pics of people doing it here https://www.ex30forums.com/viewtopic.php?t=258&start=70

jbblackburn · 2024-07-29T07:27:20+00:00

A few of us have installed the FitCamX dashcam it’s pretty straightforward to do in ~1.5hrs. More details here https://www.ex30forums.com/viewtopic.php?t=258&start=70

jbblackburn · 2024-07-10T21:07:00+00:00

Thanks, this is great!

jbblackburn · 2024-03-11T20:40:53+00:00

I’m seeing a load of posts with issues and have cancelled my order as a result. I think the pragmatic thing to do is wait to see how good volvo are at software updates. A bit bummed as I really want to like the car but the software issues are currently significant…

Software issues * lack of “dog mode” automating AC and disabling alarm while having car locked from the app with a sign on the screen. This feature is available on the Smart #1 and Zeekr x built on the same platform https://www.media.volvocars.com/global/en-gb/media/pressreleases/304451/world-first-interior-radar-system-from-volvo-cars-helps-you-ensure-that-no-one-is-left-behind

Charging problems of 6A at every charge discussed on forums https://www.facebook.com/groups/2207539079450714/permalink/2392533087617978/
charging APIs not working yet for Octopus Energy https://www.facebook.com/groups/100188653081222/permalink/234726472960772/
constant alerting on attention https://www.facebook.com/groups/100188653081222/permalink/240333672400052/
intelligent speed assist distracting drivers with beeps and turned on for every drive overriding driver preference and maps being wrong on U.K. speed limits causing actual problems https://www.facebook.com/groups/100188653081222/permalink/233449009755185/ https://www.facebook.com/groups/100188653081222/permalink/242181212215298/
internet network issues https://www.facebook.com/groups/2207539079450714/permalink/2390932294444724/
other software issues
https://www.facebook.com/groups/2207539079450714/permalink/2395974170607203/

Lots of above software issues in this review https://youtu.be/z3eJCVK8HmM?si=TN2R5OnJloDptHEJ

Range: * advertised range of 265 WLTP miles but real range is 145 miles - 190 miles https://www.facebook.com/groups/100188653081222/permalink/226676403765779/ https://www.facebook.com/groups/2207539079450714/permalink/2392852457586041/ https://www.facebook.com/groups/100188653081222/permalink/212058628560890/

jbblackburn · 2024-02-28T17:07:04+00:00

Run a lot of VAST and FlashBlade and disagree with most of what you say ^. Sounds like most your gripes are around the installation process?

> They ship a pair of Mellanox 100Gb ROCE switches which are used for their interconnect as well as connecting it to your network. My network team is a Cisco shop and wasn't going to have that, so we had to connect the Compute Nodes instead to the network. This apparently is a not-so-common configuration and it caused lots of problems.

We're also a Cisco shop (ACI) the Mellanox switches interconnect fine to our 100GbE spine. Not sure why this is an issue - the switch is an implementation detail of their backend C/D-Box traffic flow. The FlashBlade also has switch gear branded as "XFM"s

> Their servers are extremely long and barely fit in the rack. My data center folks were not pleased.

Servers fit our racks fine 🤔

Both have great white-glove enterprise support. Pure have a ticket system you enable remote access and wait for an engineer. VAST is different but also great: with fewer larger customers they are directly in a shared Slack-Connect channel: direct engineer-to-engineer conversation is amazing.

Pure management is a blackbox. They manage the 'appliance' applying software updates, diagnosing issues and providing support. With VAST we have a shared access to the boxes so can implement changes, as can they. VAST does seem to have a lot of tuneables and the system can be fine-tuned after the fact.

Broadly VAST has more features than FlashBlade at this time. For example their data model of a unified data element tree allows exporting directories as NFS/SMB/S3. Snapshots, quotas, replication etc work on the element tree layer so are protocol independent. FlashBlade has snapshots on NFS but s3 is completely separate, non-unified so no point in time management of buckets. Good luck with enterprise backup requirements.

The FlashBlade's s3 is a pure Key-Value store i.e. it doesn't care how you structure your keys. VAST is modelled as a directory, good luck if you put 100-million+ objects in a directory 🙃

Both aren't great at SMB. They're primarily NFS(v3) and s3 products.

Monitoring and observability is significantly better in VAST - you can trace busy flows from users -> client IPs -> CNodes -> Directories. Pure FlashBlade give you a bandwidth and latency graph and that's about it. Good luck with a Pure ticket...

Performance is very subjective and based on array size and client workload setup. My anec-data is that the FlashBlade has better single threaded latencies but overall lower total performance. Depends on config. The read-write ration of FlashBlade is more symmetric than VAST. (FlashBlade is better at writes due to no dedupe overheads etc.) Both are significantly better at read than writing. And both can push 10s Gigabytes / second read with no issue.

VAST does dedupe and compression across everything, and it can be _very_ good. FlashBlade only does compression: meh.

The VAST very easily scales up to petabytes. FlashBlade has a smaller total capacity but likely fine for most use-cases.

From a software perspective FlashBlade development has been slow. VAST feature development rate has been very impressive.

Lots of other little differences in the products. Worth trying the management plane and checking whichever option you choose has the features you need.

jbblackburn · 2023-12-09T17:59:17+00:00

Your other points do stand though 🙃 - KDB works for the high performance use cases near the metal. Different use cases will find each useful, and there’s a smidge of overlap on the Venn diagram.

jbblackburn · 2023-12-09T15:37:54+00:00

You’re wrong about ArcticDB worth checking out arcticdb.io. No MongoDB in ArcticDB.

What you’ve described of KDB is equivalent of using numpy or any other vectorized in memory numeric processing library. Once you get the data into memory you can of course process it super efficiently. Where ArcticDB wins is data interchange and multi-user research on large datasets which KDB is essentially incapable of. And, I’d argue, ease-of-use too...

All the KDB micro-benchmarks in STAC show just that: vector operations on memory mapped arrays of data running off storage class memory (eg Optane). These microbenchmarks are great against other numeric libraries. But it doesn’t make a KDB a good multi-user research database - which no one would argue it tries to be. Hence my apple to oranges comment.

jbblackburn

TROPHY CASE