Recently, Western Digital announced the world's first 26tb mechanical hard disk ultrastar DC hc670, with a single disk capacity reaching a new high of 2.6tb at the same time. However, it uses SMR laminated magnetic recording technology called by everyone, although it is an enhanced version of ultrasmr. At the same time, Western Digital also launched the world's first 22tb hard disk ultrastar DC hc570 for CMR traditional magnetic recording, with a single disk capacity of 2.2tb.
Speaking of 22tb hard disk, Seagate has also shipped for several quarters, but it adopts HSMR hybrid laminated type, which is only limited to the data center market.
Now, Seagate's new 22tb hard disk has passed the certification of sata-io , code Osprey (Osprey), number stl022 , serial number stxxxnm0092-3cx103, which proves that it is a near line storage hard disk.
Considering that the code name of Seagate Galaxy exos X20 20tb hard disk is long's peak and the number is stl020, this new hard disk will obviously be Galaxy exos X22**
Various indications show that the hard disk is still CMR traditional magnetic recording and will not be Seagate's new HAMR thermal assisted magnetic recording**
But fortunately, it's not SMR.
