lvm+ssd缓存 附samba配置

注：一般不用在未挂载前创建samba，视实际情况而定（客户现场掉盘后samba服务异常，直接导致服务器掉盘卡死，先临时起samba服务，但需要考虑系统盘大小与业务持续写入情况，避免samba服务器根分区爆满）

parted -s /dev/nvme0n1 mklabel gpt mkpart CACHE 0% 100%
parted -s /dev/mapper/mpathf mklabel gpt mkpart DATA 0% 100%                                            
parted -s /dev/mapper/mpathg mklabel gpt mkpart DATA 0% 100%

vgcreate santiagodvg /dev/nvme0n1p1 /dev/mapper/mpathf1 /dev/mapper/mpathg1
lvcreate -l 100%PV -n nvmelv santiagodvg /dev/nvme0n1p1
lvcreate -l 100%FREE -n datalv santiagodvg
lvconvert --type cache --chunksize 2M --cachevol nvmelv santiagodvg/datalv
lvs -o cache_mode santiagodvg/datalv|grep writeback||lvchange --cachemode writeback santiagodvg/datalv

mkfs.xfs -K /dev/mapper/santiagodvg-datalv
echo "/dev/mapper/santiagodvg-datalv /data xfs defaults,_netdev 0 0" >> /etc/fstab
mkdir -p /data/santiagod
chmod 777 /data
mount -a
mkdir -p /data/santiagod
chmod -R 777 /data


# cat /etc/samba/smb.conf
[global]
aio read size = 4096
        workgroup = H305
        server string = THE nse1k Server Version %v
        log file = /var/log/samba/log.%m
        max log size = 5120
        security = user
        passdb backend = tdbsam
        load printers = yes
        cups options = raw
        map to guest = Bad User
        guest account = crealife
        ntlm auth = yes
;       include = /etc/samba/rhs-samba.conf


        kernel share modes = no
        kernel change notify = no
;        ctdbd socket = /tmp/ctdb.socket
;       include = /etc/samba/ctdb.conf
        kernel oplocks = no
        posix locking = no
        map archive = no
        map hidden = no
        map read only = no
        map system = no
        store dos attributes = yes
        load printers = no
        disable spoolss = yes
        show add printer wizard = no
        printing = bsd



        [santiagod]
        comment = santiagod
        path = /data/santiagod
        read only = no
        guest ok = yes
        force create mode = 0660
        force directory mode = 02770
        force user = santiagoddess
        case sensitive = Yes
        preserve case = No
        short preserve case = No

systemctl restart smb

useradd -M -d /data/santiagod -s /usr/sbin/nologin santiagoddess
smbpasswd -a santiagoddess
systemctl restart smb

ls -Z



SELinux provides a user (unconfined_u), a role (object_r), a type (user_home_t), and a level (s0). This information is used to make access control decisions. On DAC systems, access is controlled based on Linux user and group IDs. SELinux policy rules are checked after DAC rules. SELinux policy rules are not used if DAC rules deny access first.