Hello VergilYong, With your PS6100xv end of support live is 7 years from date of purchase.  For your PC6224 we would need your service tag.  As a general rule with most Dell products the service life is 5 years from date of purchase. Please let us know if you have any other questions.
Hi good day, Please help to find out EOSL for below model list; Switch – Dell Powerconnect 6224 SAN storage – Dell EqualLogic PS6100XV
End of service life for Dell Powerconnect 6224 and Dell EqualLogic PS6100XV