baruch

30 ms·

271.
by baruch 13y ago
What would be an effective and relatively inexpensive way to get into manufacturing such OpenDesks?
272.
by baruch 13y ago
You'd also need to do it from multiple ips to avoid hellbanned or effectively filtered later on (presumably they log from which IP the request came from).
273.
by baruch 13y ago
http://www.quora.com/Front-Page-of-Hacker-News/When-is-the-b...
274.
by baruch 13y ago
If the SSD part fails you pretty much lost all benefit of the HDD itself. It might or might not function with the bad flash chips but you definitely lost all the performance boost. The caching options sound much better overall but they do t
275.
by baruch 13y ago
From what I know when a drive "reallocates a sector" it actually reallocates a track or something very close to that. So that at least for the rotational sequencing the performance will not change that much. Ofcourse, the track th
276.
by baruch 13y ago
While this is true they are also optimizing for a wide range of operating environments. If you could reduce the size of the optimization space you could get a better result. There are many places where I could think of better behavior out o
277.
by baruch 13y ago
The difference is that the enterprise storage space gets such firmware from the vendor rather than hacking it on its own. At least where I've been so far (NetApp is not included so far :-) Before I got my hand on vendor provided error
278.
by baruch 13y ago
Nexus 4 doesn't have an easily replaceable battery either.
279.
by baruch 13y ago
You probably wanted to provide a link to your project, that link is missing.
280.
by baruch 13y ago
I use PwdHash ( https://www.pwdhash.com/ ) to obfuscate my password for me based on the site url so that I only need to remember one password and yet not fear when it gets leaked from one hacked server. There is a browser extension and a
281.
by baruch 14y ago
It seems to be geared only towards research insititutes and a specific one at that, most of the work using OpenSSD is concentrated on that one university.
282.
by baruch 14y ago
Indeed, but life then was different, the CPU was weaker and there was a good intention with pushing everything to the disk. The intention is still good but it is now possible to do things better in a different way.
283.
by baruch 14y ago
Documentation is an issue indeed. I don't think that you really need the inner information about NAND to do the original and innovative research. It really depends on the area you want to work on, the SSD firmware level might require that b
284.
by baruch 14y ago
I can see a mix where some parts are done by hardware, ECC comes in there. Other things should be done in software (FTL, error recovery, RAID). The block interface itself is actually matching the flash, you read/write/erase in blocks, they
285.
by baruch 14y ago
I actually agree that using the block interface makes sense for storage but would have loved to have a minimal interference from the SSD. If it just exposed the entire flash to address by the user and reported when a block has problems and
286.
by baruch 14y ago
They actually have all the components under their arm, they bought Anobit which made fabulous SSDs and are snatching engineers around here. Anobit SSDs were the best I've seen so far in terms of consistent performance.
287.
by baruch 14y ago
For some uses this may be a better option, it will still require handling of the flash chips. Assuming SAS connectivity as the interface this is perfectly possible with the OSD standard from T10 (SCSI committee). SATA is not going to work s
288.
by baruch 14y ago
Case in point for the cost: I looked at buying an OpenSSD (referenced in the article) to write my own firmware to a lowly 64GB device. Was quoted $2000. There is nothing else getting close to this openness on the market.
289.
by baruch 14y ago
The problem is that most users (home & enterprise) just want things to work, they don't really care much how to get there and to have the best efficiency. It won't be too hard to have a good filesystem that works over raw NAND flash but
290.
by baruch 14y ago
Your advice is ok for someone who is willing to take no risks and to spend the money on that. It is not strictly correct for all situations. In fact storage arrays are not likely to drop a disk on the first medium error since medium errors
291.
by baruch 14y ago
The disks themselves (new ones at least) have a background scan process (called BMS or BGMS) which helps considerably. The one thing the disk can't do by itself is correct unrecoverable errors since by the definition the disk can't recover
292.
by baruch 14y ago
It may very well be the issue, if a disk takes a long time to recover from errors even a software RAID will throw the disk out or risk being the problem by itself. TLER will limit the damage. Ofcourse, if the software was smart enough to kn
293.
by baruch 14y ago
Great idea! Currently I use "Get Work Done Music" as a background music service, having something effortless to stream music that would also let me discover local music would be just the right thing for me. I signed up for your beta, would
294.
by baruch 14y ago
Would love to see such a tutorial. Not that I have any use for it but it would be interesting to know.
295.
by baruch 14y ago
Normally you use an HDD without any write cache and if you do use a write cache along the way (on the HDD or on the server) you make sure you are battery backed. SSD is a bit different since even if you do not use write caching on the SSD t
296.
by baruch 14y ago
Are they all the same model? How long have they been running? Is it a relatively similar load on all of them? Can you share smart attributes for them? (in private if needed) On a very low fire I'm trying to create a disk survey project ( ht
297.
by baruch 14y ago
With that I agree.
298.
by baruch 14y ago
Assuming this predictability is not a good idea in my experience. SSDs fail in various ways, some may be predictable and some are completely unpredictable. It is also not true that an ssd failure means it simply goes to readonly mode. I've
299.
by baruch 14y ago
There are several background operations that happen on ssds, low or high end doesn't matter they all need them. I've seen quite a few supposedly high-end ssds that show abysmal behavior with wide variations in performance across time. SSD q
300.
by baruch 14y ago
The throughput would be affected by the latency increase. I believe the QPI link between the processors has enough bandwidth so the extra latency to transfer the data between the processors and the reduced performance due to cache switch-ov

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