View Full Version : SATA Solid state discs from Sandisk
samsc
15-07-2007, 08:33 AM
solid state disks with sata interfaces- from sandisk
http://www.sandisk.com/OEM/ProductCatalog(1274)-SanDisk_SSD_Solid_State_Drives.aspx
http://www.sandisk.com/OEM/ProductCatalog(1321)-SanDisk_SSD_SATA_5000_25.aspx
random read translates into better user experience- this is the exact problem in catalyst.
http://www.sandisk.com/Assets/File/pdf/oem/SanDisk_SSD_Performance_Faster_Random_Read_Speed_T ranslates_into.pdf
How the HDD Causes an IO Bottleneck
The negative impact of the HDD’s mechanical parts is most acute when many
small files require random read access, as can be seen in Figure 1. Transfer
time is calculated as follows:
Transfer time = interface transfer + media transfer + mechanical delay
For a single random read request for a small file such as a DLL, HDD
mechanical delay accounts for some 95% of the entire transfer rate. The
media transfer (4%) and interface transfer (1%) account for the remainder.
In contrast, the SSD has no mechanical delay.
This is why the RAM disks work so well- no mechanical delay.
The mechanical delay is greater the slower the drive speed- hence the reason why 7200RPM SATA discs are the poorest performing disc in catalyst
Havent heard from anyone who has tested these yet.
samsc
15-07-2007, 11:01 AM
dont know pricing or availability.
jasonrudolph
15-07-2007, 12:28 PM
dont know pricing or availability.
There are some 2.5" disks available out there, but these are normally insanely expensive.
samsc
15-07-2007, 12:35 PM
There are some 2.5" disks available out there, but these are normally insanely expensive.
from a san disk press release i believe these do not fall into the insanely expensive category- these guys are trying to move into laptops...
The solid-state flash memory drive will be compatible with most mainstream notebook designs, according to the company, and comes just months after SanDisk announced a similar <http://www.pcmag.com/article2/0,1895,2079535,00.asp>1.8-inch SSD for ultra-portable notebooks. That drive—also a 32-gigabyte version—was $600 more than a comparable 32-gigabyte disk drive would cost.
The new 2.5-inch SSD is now available, however, for $350 (for large volume buyers) as a drop-in replacement for hard disk drives, SanDisk said.
samsc
15-07-2007, 12:38 PM
says here manfacturers price around 350$
http://www.engadget.com/2007/03/13/sandisk-intros-2-5-inch-32gb-ssd-hard-drive/
samsc
15-07-2007, 12:40 PM
transcend ssd for laptops:
509$ for 32GB
http://www.transcendusa.com/Products/ModDetail.asp?ModNo=162
64GB
http://www.engadget.com/tag/64gb
http://www.mobileplanet.com/p.aspx?i=150240
pqi disc - no pricing
http://www.pqi.com.tw/product2.asp?oid=141&cate1=158&PROID=263
lexar 16GB SSD for laptop 299$
http://store.lexar.com/?productid=EX16GB-431
samsung
http://www.samsung.com/eu/Products/Semiconductor/products/ssd.asp
samsc
15-07-2007, 01:05 PM
There are some 2.5" disks available out there, but these are normally insanely expensive.
found the insanely expensive ones
But the price for a RamSan system with 64GB of flash is $72,000 retail.
http://www.techworld.com/storage/features/index.cfm?featureid=3231
samsc
15-07-2007, 01:18 PM
http://eshop.macsales.com/shop/memory/Mac-Pro-Memory
16GB around 1500$ --- ( applestore price is 4400$ )
jasonrudolph
15-07-2007, 04:37 PM
found the insanely expensive ones
http://www.techworld.com/storage/features/index.cfm?featureid=3231
Yeah, those are the ones I was thinking of. Good to see the sandisk ones are coming down in price. I could see doing maybe a couple of these in Esata enclosures, so all you need to do is drop a controller card into a rental machine.
I think it would be curious to see what one of these in a fw800 enclosure would do performance wise. I'm sure it wouldnt do as good as an SATA connection, but it would be interesting to see nontheless.
samsc
15-07-2007, 07:53 PM
Yeah, those are the ones I was thinking of. Good to see the sandisk ones are coming down in price. I could see doing maybe a couple of these in Esata enclosures, so all you need to do is drop a controller card into a rental machine.
600$ list is a bit better than 72000$...
you could just put them into a mac pro. you need a cable to go from the internal connectors to the drive - such things did not seem to be difficult to get last time i checked.
they claim the access time is 0.11ms.
nothing is ever certain. i havent read any real world reports yet.
jasonrudolph
16-07-2007, 12:25 AM
While I know you could just install internally in the mac, for those of us who have to work with rental servers more often than not, if thes drives could work well in an external enclosure, it could be really useful.
samsc
16-07-2007, 12:42 PM
While I know you could just install internally in the mac, for those of us who have to work with rental servers more often than not, if thes drives could work well in an external enclosure, it could be really useful.
yes.
it might work in an external firewire case- which would be cool. i havent checked recently whether any of the firewire cases have sata inside. they mostly used to have IDE.
jasonrudolph
16-07-2007, 01:09 PM
Other world computing has some 2.5 and 3.5 enclosures, what is nice is that they also include eSATA connections on them, so if you did have a controller card in th emac, you could use them via SATA, but if not, then via firewire or USB.
http://eshop.macsales.com/shop/firewire/on-the-go
http://eshop.macsales.com/shop/hard-drives/external/elite-al-pro-quad
emilianomorgia
17-07-2007, 05:18 AM
What about this thing ?
http://www.synchrotech.com/products/card-rw_31_firewire_800_1394b_compactflash_cffire800.ht ml
Powered by vBulletin® Version 4.2.2 Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.