Originally Posted by drblank
I don't know about 2TB SSDs. I can see Fusion drives since they are as fast as an SSD for a little more than HDD. 2TB drives would cost over $2,000. Right? 1TB Fusion drives cost about $450.
Updated to adjust for 2TB drives.
+1 figure a 2TB fusion drive for $900 or less (by release date).
Only the biggest of the big data pounders would want performance/price of a true SSD (100% random access across multi-Terabytes of data with ms access).
Now spinning the 1/2 grain of truth a slightly different direction....
.... Large SSDs can decouple highly volatile (many write many read) active cashes from RAMdisk and to the storage fabric for a less complex shared store.
.... As you move in to millions of queries a second over the interwebs for session verifications, having a couple RAIDed nTB SSDs at each cloud instance (for apple a couple per country... which would be a few hundred to near a 1000),
.... I could see a market for Apple to have several thousand 2TB drives as hubs for each iCloud instance tracking all the iOS and AppleID interneted 'call home to momma' calls.
.... Therefore It wouldn't surprise me then if Apple was building nTB SSDs for themselves for their shared iCloud offerings (a multi-terabyte hash table, say of all 'good' Siri queries, or all DRM signatures, session tokens, or whatever).
Think about it... Every time I click on an iCloud item, there are probably 3 if not more signature hashes being verified, and if I'm sharing these to the masses (extend Discretionary Access Control [ACLs] to anyone), each atomic item has to be authenticated, authorized, and decrypted from storage, reencrypted for transport to the receiver. All this key management needs to support millions of transactions per second... seems to me a massive hash of AES keys is the way to go.
Even Siri, where a hash of the voice transmission "Find me the nearest Starbucks" could be computed by the iCloud mothership, which would allow for 'reuse' of past successful queiries (get voice sample/FFT, hash it, compare to my local hash table, if a match, try that, on fail, 'translate' to natural language, hash the translation, look that up on the global 'text' query table. Lots of lookups of lookups of lookups... saving milliseconds will save 10th/s of seconds eventually and my guess is 10ths of seconds speed up equate to large % of 'satisfaction')
Just sayin'... the fact may be that Apple is building massive SSDs... just not for their consumer products.