Intel Optane h10 16gb + 256gb

[SoBe]

Does anyone know why smart status shows 256gb but gpart shows 238gb?

Geom name: nda0
modified: false
state: OK
fwheads: 255
fwsectors: 63
last: 500118151
first: 40
entries: 128
scheme: GPT
Providers:
1. Name: nda0p1
   Mediasize: 8589934592 (8.0G)
   Sectorsize: 512
   Stripesize: 0
   Stripeoffset: 1048576
   Mode: r1w1e2
   efimedia: HD(1,GPT,d066d728-d2ee-11ef-ac46-90ec770dda25,0x800,0x1000000)
   rawuuid: d066d728-d2ee-11ef-ac46-90ec770dda25
   rawtype: 516e7cb5-6ecf-11d6-8ff8-00022d09712b
   label: swapUSB
   length: 8589934592
   offset: 1048576
   type: freebsd-swap
   index: 1
   end: 16779263
   start: 2048
2. Name: nda0p2
   Mediasize: 246960619520 (230G)
   Sectorsize: 512
   Stripesize: 0
   Stripeoffset: 8590983168
   Mode: r1w1e1
   efimedia: HD(2,GPT,d94bc88a-d2ee-11ef-ac46-90ec770dda25,0x1000800,0x1cc00000)
   rawuuid: d94bc88a-d2ee-11ef-ac46-90ec770dda25
   rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
   label: LOG
   length: 246960619520
   offset: 8590983168
   type: freebsd-ufs
   index: 2
   end: 499124223
   start: 16779264
Consumers:
1. Name: nda0
   Mediasize: 256060514304 (238G)
   Sectorsize: 512
   Mode: r2w2e5

=== START OF INFORMATION SECTION ===
Model Number:                       INTEL HBRPEKNX0101AH
Serial Number:                      BTTE9510086T256D-1
Firmware Version:                   HPS1
PCI Vendor/Subsystem ID:            0x8086
IEEE OUI Identifier:                0x5cd2e4
Controller ID:                      1
NVMe Version:                       1.3
Number of Namespaces:               1
Namespace 1 Size/Capacity:          256,060,514,304 [256 GB]
Namespace 1 Formatted LBA Size:     512
Namespace 1 IEEE EUI-64:            5cd2e4 5c91931887
Local Time is:                      Fri Jan 17 23:07:08 2025 PST
Firmware Updates (0x14):            2 Slots, no Reset required
Optional Admin Commands (0x0016):   Format Frmw_DL Self_Test
Optional NVM Commands (0x005f):     Comp Wr_Unc DS_Mngmt Wr_Zero Sav/Sel_Feat Timestmp
Log Page Attributes (0x0f):         S/H_per_NS Cmd_Eff_Lg Ext_Get_Lg Telmtry_Lg
Maximum Data Transfer Size:         32 Pages
Warning  Comp. Temp. Threshold:     77 Celsius
Critical Comp. Temp. Threshold:     80 Celsius

 

[ralphbsz]

The number of bytes is the same, 256,060,514,304. That is 256 GB decimal = 256 * 10^9 bytes, and it is 238 GiB binary = 238 * 1024^3 bytes. Or in other words, it is a different number of gigabytes versus gibibytes.

 

[Lewis De Payne]

256GB is the manufacturer’s decimal math. Your OS uses binary math, so it shows 238GiB, totally normal. Add in system overhead and partitioning, and it all checks out. Nothing’s wrong

 

[SoBe]

256GB is the manufacturer’s decimal math. Your OS uses binary math, so it shows 238GiB, totally normal. Add in system overhead and partitioning, and it all checks out. Nothing’s wrong

Thanks I was scared there was a weird partition on it. I have worked with old DISH DVR hdd to convert them to use with storage it is a nightmare and you would have to delete the weird partitions on them to get it to work and adjust puis mode (power up in standby) so I like to make sure you know. Thanks for the reply.