MASS STORAGE DEVICES
.
.
.
.
.
.
.
.
.
.
or
EXTERNAL HARD DRIVES
.
.
.
.
.
SOLID STATE DRIVES
.
.
.
.
.
All drives run on LBA = LOGICAL BLOCK ADDRESSING
LBA = Little organiser guy who stores stuff in different little units
FILE CAPACITY
MB, GB, TB, PETABYTE, EXABYTE
.
.
.
.
.
.
.
.
.
.
Cpu has trouble communicating with MSDevices
KILO (decimal values) < KIBI blinks (IEC values)
.
.
.
.
.
.
.
.
.
.
OPTICAL MEDIA = 5.25-inch mass storage
.
.
3.5-inch mass storage
.
.
2.5-inch Laptop storage device
.
.
1.8" Mass storage
.
.
m.2 format mass storage (TINY)
.
.
And THUMB DRIVES
.
.
.
.
.
.
.
.
.
.
.
.
.
.
MAGNETIC DISK DRIVES
- A little phonograph needle magnetically writes into SECTORS
*HDD
.
.
.
.
.
.
.
.
.
.
.
.
.
.
LBA = LOGICAL BLOCK ADDRESSING
LBA language is based on ATA: ADVANCED TECHNOLOGY ATTACHMENT
Lots of hard drives speak SATA (serial ATA)
.
.
.
.
eSATA interfaces a bunch of drives attached to each other
(Big block EXTERNAL HD)
.
eSATA port connector on motherboard looks like flat squished ethernet
Think red TRON ship
.
.
.
eSATA expansion card snaps into motherboard
Then you can use old eSATA EXTERNAL HDs
.
.
.
.
When MASS STORAGE DEVICE is plugged up correctly
it will show up on SYSTEM SETUP/STARTUP black screen
.
.
.
.
.
.
.
.
.
.
.
SSDs SOLID-STATE DRIVES
(faster & better for booting up)
SSD data is stored in "pages"
.
.
.
.
.
2.5-inch SSD
.
.
.
m.2 SSD (TINY)
Since SSDs are so much faster
we want to interface SSD speed with the speed of the PC
.
.
.
NVMe = Non volatile memory express
(usually m.2) faster than SATA
NVMe > SATA
.
.
.
.
**You can add a NVMe to motherboard via m.2 port**
.
.
.
.
.
.
.
.
.
.
.
OLD MASS STORAGE used "parallel ATA"
LOL
.
.
there was also "iSCSI" = scuzzy
SMALL COMPUTER SYSTEMS INTERFACE
.
ATA and iSCSI were competing brands w/ incompatible languages
.
.
.
.
.
1 SERIAL channel (MODERN WAY) > PARALLEL
(old EXTERNAL MASS STORAGE DEVICES ran PARALLEL)
.
.
.
.
.
.
.
.
.
.
.
.
SAS (serial attached scuzzy SCSI) should not be confused with SATA 
'cause it's old as fuck
.
.
.
.
.
.
.
.
.
.
.
.
*Ultra rare - "ISCSI"
(old scuzzy connected via ethernet cables - sometimes you see it in customer servers)
.
.
.
.
.
.
.
.
.
.
.
.
BOOT ORDER
ON A SYSTEM WITH LOTS OF EXTERNAL DRIVES??
.
first
Customize "boot order" via SYSTEM SETUP/STARTUP black screen
BOARD EXPLORER on SYSTEM SETUP shows what is plugged in via pictures
highlights RED
.
.
.
.
.
Always take time choosing your boot order
**NEVER CHOOSE "UEFI"- it is only firmware, not an actual drive!**
Comments
Post a Comment