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We've got a small ESX3 cluster w/ Server vMotion (I don't believe we have Storage vMotion) attached to two iSCSI storage arrays. One array is (gross) Windows and requires Windows updates pretty much all the time. The backup array offers pretty similar...
Started by Matt Rogish on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at serverfault):
Guess I need Storage vMotion then Storage VMotion isn't supported but Storage VMotion is available in ESX 3.5 if you have VMotion enabled Andrew Kutz's excellent....
I see by shutting down the VM I can migrate to a different datastore .
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Hello everyone,
Is anyone here using the IBM XIV storage array? Anything you would like to share of your experience so far? We're evaluating an HP EVA along with the XIV which is very different (using commodity hardware, SATA drives, Linux appliance-like...
Started by JFA on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at serverfault):
It also works fine....
We were looking application only.
We are mainly a HDS and IBM shop (well, on the storage side anyways).
The only time that I'd recommend a traditional RAID-based storage subsystem when it's very small pleased with it.
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I recently picked up a bunch of hardware to build a new home media server. When fully configured, it'll have 20 1TB hotpluggable SATA-II drives running under a Linux system. To date, I've used RAID5 and RAID6 (not in conjunction) in smaller servers spanning...
Started by Tim on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at serverfault):
LVM allows you to easily grow the storage, unify multiple RAID arrays into a single volume group, and gives flexibility in allocating storage (if you've got disks to an existing array....
On Linux software RAID, with LVM on top.
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What is differences between Multidimensional array and Array of Arrays in C#? if there a difference.
What is the best use for each one?
Started by ecleel on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Consider following....
Will see that storage and retrieval from jagged (or single dimensional array) is simple IL instructionsArray of arrays (jagged arrays) is faster than multi-dimensional arrays and can be used more.
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Hey everyone,
When implementing a Matrix construct using arrays, which would be more efficient? Using a 1D array, or an array of arrays (2D)?
I would think a 2D is more efficient as you already have the X and Y coordinates of an element, where in a 1D...
Started by barfoon on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
An array-of-arrays solution is more efficient in terms array (which is ....
Of storage, where the array may be sparse (i.e., you can use null pointer to represent a matrix line of all"Efficient" is not a catch-all term.
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I'm creating a TableModel which will have a fixed number of columns, but the number of rows will be changing (mostly, increasing as function of time). Which would be better approach to store the data,
ArrayList[] columns = new ArrayList[numberOfColumns...
Started by Joonas Pulakka on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
There are several options for....
So your structure is:
List<Object[]> rows;
where the array element is one row.
Fixed numbers of columns means you don't need to reallocate your array.
At which point each row should be an array.
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Is there any performance counter? Or i really get result like that:
Jagged Arrays: 2000 ms
Arrays : 3000 ms
ArrayList : 4000 ms
How can i code method to get performance result?
Answer Snippets (Read the full thread at stackoverflow):
So, just compile your....
How to test Array speed
results of these tests of different storage structures will vary depending on the operations you require to carry out on said it.
So, to start how to do it, read his blog .
Staticstics for .net.
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Hmmm. I have a table which is an array of structures I need to store in Java. The naive don't-worry-about-memory approach says do this:
public class Record { final private int field1; final private int field2; final private long field3; /* constructor...
Started by Jason S on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
What's more you pass the columns to Matlab, but I guess you don't gain much speed with a column based storage, you are stuck with just....
Instead of resizing one array, you're resizing three arrays when you do an insert or delete.
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When I want an array of flags it has typically pained me to use an entire byte (or word) to store each one, as would be the result if I made an array of bool s or some other numeric type that could be set to 0 or 1. But now I wonder whether using a structure...
Started by Owen on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
Note that the memory access is pretty expensive compared to the shift/and, so... .
If your array of bools is large enough that a 8x improvement on storage space is meaningful, then by all means, use a bitarray.
It's mostly about saving memory.
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Hello, guys
I'm confused a little while writing own tiny discovering program to clear up how Visual C++ allocates the memory for dynamic arrays. I must note, I have never met technical documents that describe this question on new[]/delete[] operators ...
Started by L. Shaydariv on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Nothing....
Try something like showing anything since you are just allocating a chunk of contiguous storage (ala malloc ) and printing out the range of addresses.
But fake_int_ctor(int) is printing uninitialized memory in the allocated array.
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