Viewing profile — asharp

It's more of a capability thing. If you're running, say, Piston cloud you're using ceph over ethernet to back your disks, so you can easily decouple disk usage and ram usage. If yo…

This makes sense when you keep in mind how the older clouds work (essentially VPS providers 101). You have a server with some disks, some ram and some cpus. You aggregate the disks…

Also look at https://github.com/Seagate/Kinetic-Preview

Key value stores are useful, and they are especially useful in this form factor. On the other hand, you now have a very large black box that you have to somehow navigate in order t…

Bitrot? Error recovery? SMART data? ...?

That doesn't seem to agree with http://www.fujitsu.com/downloads/MICRO/fma/pdf/LCD_Backgroun... .

Using external kernels isn't in any way fundamental to the way Xen works. Most standard setups (even PV) have the kernel inside the VM, which allows for standard upgrades, etc.

I think you should take a quick look at oracle's exadata machines. Mostly because they are both distributed and ACID compliant.

Does this method have a name/are there any reasonable papers out there describing it?

I saw that, but it doesn't seem to implement any of the indexes you'd need in order to run a bloom query efficiently. That being said, if you stored your bitvector as an array of p…

I believe that you can index the bloom column, to some extent, with some hacks. A major problem is a lack of indexes in array elements, which then forces you to build an otherwise …

Cloud done right. Hardware that is approximately indistinguishable from tin sitting on your datacenter floor, pay by the second. To elaborate slightly. I mean hardware that you can…

Cool speed hacks. An an improvement though, you only need two independent hash functions to run your bloom filter[1]. Strangely enough, this isn't well known and as such isn't impl…

Mmmm. Strange. Anyways, the major problem is that shares and options are taxed like income at the time of issue, with no easy way to defer the tax bill. This makes it essentially u…

It wouldn't surprise me if it has something like GCJ creating something like a .so that it loads on the fly. That is just a thought though, i haven't inspected it particularly clos…

Would you mind elaborating? ssltrip requires a valid root ca, or an ssl library that doesn't check the signing chain. After using it though, the parameters are unencrypted and so c…

Sure you can, assuming: 1) You know the hash function beforehand 2) You know that they are salting in exactly this way 3) You know how they are doing their salting (HMAC vs., vs.) …

Having a password salted with the username fairly easily balloons out the complexity of building and searching a rainbow table by a factor of the number of usernames you want to be…

DNS doesn't play particularly nice when you try and load balance it. You end up, essentially with issues with end users caching particular ip addresses and either failing when they…

You can in fact bond for 2gbps if you are on two different switches, in two completely different ways. One way involves the use of cisco stacking switches, allowing you to use 802.…

From what i've read, the problem is that an attacker can add commits with forced Author information into a central repository to frame somebody else. Wouldn't the signing of all co…