11–20 of 25 posts
Claims "STR of 175MB/s Read and 145MB/s Write", but SSDs appear to be in the 300MB/s to 500MB/s rate: http://www.storagereview.com/samsung_ssd_840_pro_review I would have thought write performance would be faster than SSD, though? are SSD rates really that fast? wow...
http://www.ddrdrive.com/ http://www.ddrdrive.com/menu4.html
Earlier quoted context omitted.
That thing is ludicrously expensive.
That's because it was purpose built to be a ZIL (ZFS intent log) in large production fileservers. Cost was less of an issue than performance.
Claims "STR of 175MB/s Read and 145MB/s Write", but SSDs appear to be in the 300MB/s to 500MB/s rate: http://www.storagereview.com/samsung_ssd_840_pro_review I would have thought write performance would be faster than SSD, though? are SSD rates really that fast? wow...
Earlier quoted context omitted.
That's because it was purpose built to be a ZIL (ZFS intent log) in large production fileservers. Cost was less of an issue than performance.
Still capped at 4GB you can get other PCIE RAMdisks with higher capacity which are cheaper not sure if they'll perform the same tho...
That being said, where's this list of RAMdisks, in a PCIe form factor, with a capacitor/battery backup, and hardened Solaris drivers? I don't think I've ever run across one.
Claims "STR of 175MB/s Read and 145MB/s Write", but SSDs appear to be in the 300MB/s to 500MB/s rate: http://www.storagereview.com/samsung_ssd_840_pro_review I would have thought write performance would be faster than SSD, though? are SSD rates really that fast? wow...
It was probably limited by the SATA interface speed back then.
Claims "STR of 175MB/s Read and 145MB/s Write", but SSDs appear to be in the 300MB/s to 500MB/s rate: http://www.storagereview.com/samsung_ssd_840_pro_review I would have thought write performance would be faster than SSD, though? are SSD rates really that fast? wow...
Is there any other benefit to purchase a HyperDrive over an SSD?
The only thing this has over an SSD drive is that there is virtually no wear-out. Though I'm not sure if there is a practical workload that would take advantage of this, considering SSDs should be able to handle constant I/O for several years before they die. Is there any other benefit to purchase a HyperDrive over an SSD?
Yep, a SSD will fragment sooner or later, the HyperDrive (or any RAM based drive for that matter) is time-guaranteed latency.
I came across this while looking for a pure RAM USB stick to use as swap on my Raspberry Pi. I didn't find such a beast, unfortunately. I'm also considering sharing some sort of ramdisk via iSCSI from another machine.
Often enough I ask myself why the network chip couldn't be interfaced with MII like any common cellphone SoC does with WiFi and why the USB host pins of the CPU are not routed through to the MicroUSB connector :/