Proxmox 8.1配置下出现“Partition 3 does not start on physical sector boundary”警告的原因咨询

刚完成Proxmox 8.1的全新安装，运行fdisk -l时收到警告："Partition 3 does not start on physical sector boundary"。这让我有点意外，因为这个分区的起始扇区是2099200，按道理是可以被8整除的（毕竟物理扇区是4096字节，逻辑扇区是512字节，4096/512=8）。

我担心这个问题会影响性能和SSD的使用寿命，想请教下这是什么原因导致的？

系统信息 #

• OS：Proxmox 8.1（基于Debian 12.5）
• 硬件：MegaRAID 12GSAS/PCIe Secure SAS39xx控制器，4块硬盘组成RAID 5

lshw -class disk -class storage 输出 #

*-raid
           description: RAID bus controller
           product: MegaRAID 12GSAS/PCIe Secure SAS39xx
           vendor: Broadcom / LSI
           physical id: 0
           bus info: pci@0000:81:00.0
           logical name: scsi0
           logical name: /dev/fb0
           version: 00
           width: 64 bits
           clock: 33MHz
           capabilities: raid pm msi pciexpress msix bus_master cap_list rom fb
           configuration: depth=32 driver=megaraid_sas latency=0 mode=1024x768 visual=truecolor xres=1024 yres=768
           resources: iomemory:2000-1fff iomemory:2000-1fff irq:51 memory:20020f00000-20020ffffff memory:20020e00000-20020efffff memory:f2100000-f21fffff ioport:b000(size=256) memory:f2000000-f20fffff
         *-disk
              description: SCSI Disk
              product: MR9560-8i
              vendor: BROADCOM
              physical id: 3.6f.0
              bus info: scsi@0:3.111.0
              logical name: /dev/sda
              version: 5.27
              serial: 00cd0054e9b972052d000a6910b26200
              size: 2681GiB (2878GB)
              capabilities: gpt-1.00 partitioned partitioned:gpt
              configuration: ansiversion=5 guid=efea2081-a6ca-4151-ae8b-d5cc971ce290 logicalsectorsize=512 sectorsize=4096

fdisk -x 输出 #

Disk /dev/sda: 2.62 TiB, 2878970265600 bytes, 5622988800 sectors
Disk model: MR9560-8i
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 262144 bytes / 786432 bytes
Disklabel type: gpt
Disk identifier: EFEA2081-A6CA-4151-AE8B-D5CC971CE290
First usable LBA: 34
Last usable LBA: 5622988766
Alternative LBA: 5622988799
Partition entries starting LBA: 2
Allocated partition entries: 128
Partition entries ending LBA: 33

Device       Start        End    Sectors Type-UUID                            UUID                                 Name Attrs
/dev/sda1       34       2047       2014 21686148-6449-6E6F-744E-656564454649 7E31886C-4D4F-43A7-8F53-81BA700F4394
/dev/sda2     2048    2099199    2097152 C12A7328-F81F-11D2-BA4B-00A0C93EC93B 40656EBB-ABAE-4A26-BBA4-3D18CDAD8D80
/dev/sda3  2099200 5622988766 5620889567 E6D6D379-F507-44C2-A23C-238F2A3DF928 33753DAF-6729-4730-8237-318CED86E220

Partition 1 does not start on physical sector boundary.


Disk /dev/mapper/pve-swap: 4 GiB, 4294967296 bytes, 8388608 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 262144 bytes / 786432 bytes


Disk /dev/mapper/pve-root: 20 GiB, 21474836480 bytes, 41943040 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 262144 bytes / 786432 bytes


Disk /dev/mapper/pve-data: 59.99 GiB, 64416120832 bytes, 125812736 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 262144 bytes / 786432 bytes


Disk /dev/mapper/pve-vm--1001--disk--0: 300 GiB, 322122547200 bytes, 629145600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 524288 bytes / 2097152 bytes
Disklabel type: dos
Disk identifier: 0x8b7a7123

Device                                  Boot     Start       End   Sectors Id Type Start-C/H/S  End-C/H/S Attrs
/dev/mapper/pve-vm--1001--disk--0-part1 *         2048   1953791   1951744 83 Linu       4/4/1 1023/254/2    80
/dev/mapper/pve-vm--1001--disk--0-part2        1953792   3907583   1953792 82 Linu  1023/254/2 1023/254/2
/dev/mapper/pve-vm--1001--disk--0-part3        3909630 602861567 598951938  5 Exte  1023/254/2 1023/254/2
/dev/mapper/pve-vm--1001--disk--0-part5        3909632 101564415  97654784 83 Linu  1023/254/2 1023/254/2
/dev/mapper/pve-vm--1001--disk--0-part6      101566464 103518207   1951744 83 Linu  1023/254/2 1023/254/2
/dev/mapper/pve-vm--1001--disk--0-part7      103520256 602861567 499341312 83 Linu  1023/254/2 1023/254/2

Partition 3 does not start on physical sector boundary.

备注：内容来源于stack exchange，提问作者brendanw999