Я бы предложил вам:
**Server Magento 1**
1024 MB DDR (may be to low)
40 GB HD
Nginx
PHP-FPM
APC: only for opcode
cache: file because you don't have enough memory to use APC
**Server Magento 2**
1024 MB DDR
40 GB HD
Nginx
PHP-FPM
APC: only for opcode
cache: file because you don't have enough memory to use APC
Server Magento 1 and Server Magento 2 (Load Balanced + will be in replication)
**DB Server 1**
1024 MB DDR
40 GB HD
**DB Server 2**
1024 MB DDR
40 GB HD
DB and DB2 (DB2 is just a copy of DB1 used for backup)
(some people use one db for writing and the other for reading)
**CDN Server**
1024 MB DDR
40 GB HD
другие возможности с распределенным кэшированием:
**Server Magento 1**
1024 MB DDR (may be to low)
40 GB HD
Nginx
PHP-FPM
APC: only for opcode
cache: fast backend memcache db2 and slow backend database
**Server Magento 2**
1024 MB DDR
40 GB HD
Nginx
PHP-FPM
APC: only for opcode
cache: fast backend memcache db2 and slow backend database
Server Magento 1 and Server Magento 2 (Load Balanced + will be in replication)
**DB Server 1**
1024 MB DDR
40 GB HD
**DB Server 2**
1024 MB DDR
40 GB HD
memcache
**CDN Server**
1024 MB DDR
40 GB HD